20481999720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{311}}^1$

素因数の和:545

約数の個数: 512

約数和(自身を含む): 78397562880

約数和(自身を除く): 57915563160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 37, 39, 40, 42, 52, 56, 60, 65, 70, 74, 78, 84, 91, 104, 105, 111, 120, 130, 140, 148, 156, 163, 168, 182, 185, 195, 210, 222, 259, 260, 273, 280, 296, 311, 312, 326, 364, 370, 390, 420, 444, 455, 481, 489, 518, 520, 546, 555, 622, 652, 728, 740, 777, 780, 815, 840, 888, 910, 933, 962, 978, 1036, 1092, 1110, 1141, 1244, 1295, 1304, 1365, 1443, 1480, 1554, 1555, 1560, 1630, 1820, 1866, 1924, 1956, 2072, 2119, 2177, 2184, 2220, 2282, 2405, 2445, 2488, 2590, 2730, 2886, 3108, 3110, 3260, 3367, 3423, 3640, 3732, 3848, 3885, 3912, 4043, 4238, 4354, 4440, 4564, 4665, 4810, 4890, 5180, 5460, 5705, 5772, 6031, 6216, 6220, 6357, 6520, 6531, 6734, 6846, 7215, 7464, 7770, 8086, 8476, 8708, 9128, 9330, 9620, 9780, 10101, 10360, 10595, 10885, 10920, 11410, 11507, 11544, 12062, 12129, 12440, 12714, 13062, 13468, 13692, 14430, 14833, 15540, 16172, 16835, 16952, 17115, 17416, 18093, 18660, 19240, 19560, 20202, 20215, 21190, 21770, 22820, 23014, 24124, 24258, 25428, 26124, 26936, 27384, 28301, 28860, 29666, 30155, 31080, 31785, 32344, 32655, 33670, 34230, 34521, 36186, 37320, 40404, 40430, 42217, 42380, 43540, 44499, 45640, 46028, 48248, 48516, 50505, 50693, 50856, 52248, 56602, 57535, 57720, 59332, 60310, 60645, 63570, 65310, 67340, 68460, 69042, 72372, 74165, 78403, 80549, 80808, 80860, 84434, 84760, 84903, 87080, 88998, 90465, 92056, 97032, 101010, 101386, 113204, 115070, 118664, 120620, 121290, 126651, 127140, 130620, 134680, 136920, 138084, 141505, 144744, 148330, 149591, 152079, 156806, 161098, 161720, 168868, 169806, 172605, 177996, 180930, 202020, 202772, 211085, 222495, 226408, 230140, 235209, 241240, 241647, 242580, 253302, 253465, 254280, 261240, 276168, 283010, 296660, 299182, 304158, 313612, 322196, 337736, 339612, 345210, 354851, 355992, 361860, 392015, 402745, 404040, 405544, 422170, 424515, 444990, 448773, 460280, 470418, 483294, 485160, 506604, 506930, 548821, 566020, 593320, 598364, 608316, 627224, 633255, 644392, 659009, 679224, 690420, 709702, 723720, 747955, 760395, 784030, 805490, 844340, 849030, 889980, 897546, 940836, 966588, 1013208, 1013860, 1047137, 1064553, 1097642, 1132040, 1176045, 1196728, 1208235, 1216632, 1266510, 1318018, 1380840, 1419404, 1495910, 1520790, 1568060, 1610980, 1646463, 1688680, 1698060, 1774255, 1779960, 1795092, 1875641, 1881672, 1933176, 1977027, 2027720, 2094274, 2129106, 2195284, 2243865, 2352090, 2416470, 2533020, 2636036, 2744105, 2838808, 2991820, 3041580, 3136120, 3141411, 3221960, 3292926, 3295045, 3396120, 3548510, 3590184, 3751282, 3954054, 4188548, 4258212, 4390568, 4487730, 4613063, 4704180, 4832940, 5066040, 5235685, 5272072, 5322765, 5488210, 5626923, 5983640, 6083160, 6282822, 6585852, 6590090, 7097020, 7502564, 7908108, 8232315, 8377096, 8516424, 8975460, 9226126, 9378205, 9408360, 9665880, 9885135, 10471370, 10645530, 10976420, 11253846, 12565644, 13129487, 13171704, 13180180, 13839189, 14194040, 15005128, 15707055, 15816216, 16464630, 17950920, 18452252, 18756410, 19770270, 20942740, 21291060, 21952840, 22507692, 23065315, 24383333, 25131288, 26258974, 26360360, 27678378, 28134615, 31414110, 32929260, 36904504, 37512820, 39388461, 39540540, 41885480, 42582120, 45015384, 46130630, 48766666, 52517948, 55356756, 56269230, 62828220, 65647435, 65858520, 69195945, 73149999, 75025640, 78776922, 79081080, 92261260, 97533332, 105035896, 110713512, 112538460, 121916665, 125656440, 131294870, 138391890, 146299998, 157553844, 170683331, 184522520, 195066664, 196942305, 225076920, 243833330, 262589740, 276783780, 292599996, 315107688, 341366662, 365749995, 393884610, 487666660, 512049993, 525179480, 553567560, 585199992, 682733324, 731499990, 787769220, 853416655, 975333320, 1024099986, 1365466648, 1462999980, 1575538440, 1706833310, 2048199972, 2560249965, 2925999960, 3413666620, 4096399944, 5120499930, 6827333240, 10240999860, 20481999720]

約数ペア:

[(1, 20481999720), (2, 10240999860), (3, 6827333240), (4, 5120499930), (5, 4096399944), (6, 3413666620), (7, 2925999960), (8, 2560249965), (10, 2048199972), (12, 1706833310), (13, 1575538440), (14, 1462999980), (15, 1365466648), (20, 1024099986), (21, 975333320), (24, 853416655), (26, 787769220), (28, 731499990), (30, 682733324), (35, 585199992), (37, 553567560), (39, 525179480), (40, 512049993), (42, 487666660), (52, 393884610), (56, 365749995), (60, 341366662), (65, 315107688), (70, 292599996), (74, 276783780), (78, 262589740), (84, 243833330), (91, 225076920), (104, 196942305), (105, 195066664), (111, 184522520), (120, 170683331), (130, 157553844), (140, 146299998), (148, 138391890), (156, 131294870), (163, 125656440), (168, 121916665), (182, 112538460), (185, 110713512), (195, 105035896), (210, 97533332), (222, 92261260), (259, 79081080), (260, 78776922), (273, 75025640), (280, 73149999), (296, 69195945), (311, 65858520), (312, 65647435), (326, 62828220), (364, 56269230), (370, 55356756), (390, 52517948), (420, 48766666), (444, 46130630), (455, 45015384), (481, 42582120), (489, 41885480), (518, 39540540), (520, 39388461), (546, 37512820), (555, 36904504), (622, 32929260), (652, 31414110), (728, 28134615), (740, 27678378), (777, 26360360), (780, 26258974), (815, 25131288), (840, 24383333), (888, 23065315), (910, 22507692), (933, 21952840), (962, 21291060), (978, 20942740), (1036, 19770270), (1092, 18756410), (1110, 18452252), (1141, 17950920), (1244, 16464630), (1295, 15816216), (1304, 15707055), (1365, 15005128), (1443, 14194040), (1480, 13839189), (1554, 13180180), (1555, 13171704), (1560, 13129487), (1630, 12565644), (1820, 11253846), (1866, 10976420), (1924, 10645530), (1956, 10471370), (2072, 9885135), (2119, 9665880), (2177, 9408360), (2184, 9378205), (2220, 9226126), (2282, 8975460), (2405, 8516424), (2445, 8377096), (2488, 8232315), (2590, 7908108), (2730, 7502564), (2886, 7097020), (3108, 6590090), (3110, 6585852), (3260, 6282822), (3367, 6083160), (3423, 5983640), (3640, 5626923), (3732, 5488210), (3848, 5322765), (3885, 5272072), (3912, 5235685), (4043, 5066040), (4238, 4832940), (4354, 4704180), (4440, 4613063), (4564, 4487730), (4665, 4390568), (4810, 4258212), (4890, 4188548), (5180, 3954054), (5460, 3751282), (5705, 3590184), (5772, 3548510), (6031, 3396120), (6216, 3295045), (6220, 3292926), (6357, 3221960), (6520, 3141411), (6531, 3136120), (6734, 3041580), (6846, 2991820), (7215, 2838808), (7464, 2744105), (7770, 2636036), (8086, 2533020), (8476, 2416470), (8708, 2352090), (9128, 2243865), (9330, 2195284), (9620, 2129106), (9780, 2094274), (10101, 2027720), (10360, 1977027), (10595, 1933176), (10885, 1881672), (10920, 1875641), (11410, 1795092), (11507, 1779960), (11544, 1774255), (12062, 1698060), (12129, 1688680), (12440, 1646463), (12714, 1610980), (13062, 1568060), (13468, 1520790), (13692, 1495910), (14430, 1419404), (14833, 1380840), (15540, 1318018), (16172, 1266510), (16835, 1216632), (16952, 1208235), (17115, 1196728), (17416, 1176045), (18093, 1132040), (18660, 1097642), (19240, 1064553), (19560, 1047137), (20202, 1013860), (20215, 1013208), (21190, 966588), (21770, 940836), (22820, 897546), (23014, 889980), (24124, 849030), (24258, 844340), (25428, 805490), (26124, 784030), (26936, 760395), (27384, 747955), (28301, 723720), (28860, 709702), (29666, 690420), (30155, 679224), (31080, 659009), (31785, 644392), (32344, 633255), (32655, 627224), (33670, 608316), (34230, 598364), (34521, 593320), (36186, 566020), (37320, 548821), (40404, 506930), (40430, 506604), (42217, 485160), (42380, 483294), (43540, 470418), (44499, 460280), (45640, 448773), (46028, 444990), (48248, 424515), (48516, 422170), (50505, 405544), (50693, 404040), (50856, 402745), (52248, 392015), (56602, 361860), (57535, 355992), (57720, 354851), (59332, 345210), (60310, 339612), (60645, 337736), (63570, 322196), (65310, 313612), (67340, 304158), (68460, 299182), (69042, 296660), (72372, 283010), (74165, 276168), (78403, 261240), (80549, 254280), (80808, 253465), (80860, 253302), (84434, 242580), (84760, 241647), (84903, 241240), (87080, 235209), (88998, 230140), (90465, 226408), (92056, 222495), (97032, 211085), (101010, 202772), (101386, 202020), (113204, 180930), (115070, 177996), (118664, 172605), (120620, 169806), (121290, 168868), (126651, 161720), (127140, 161098), (130620, 156806), (134680, 152079), (136920, 149591), (138084, 148330), (141505, 144744)]