20508738320

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{283}}^1$

素因数の和:475

約数の個数: 320

約数和(自身を含む): 59162880000

約数和(自身を除く): 38654141680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 80, 95, 98, 112, 133, 139, 140, 152, 190, 196, 245, 266, 278, 280, 283, 304, 343, 380, 392, 490, 532, 556, 560, 566, 665, 686, 695, 760, 784, 931, 973, 980, 1064, 1112, 1132, 1330, 1372, 1390, 1415, 1520, 1715, 1862, 1946, 1960, 1981, 2128, 2224, 2264, 2641, 2660, 2744, 2780, 2830, 3430, 3724, 3892, 3920, 3962, 4528, 4655, 4865, 5282, 5320, 5377, 5488, 5560, 5660, 6517, 6811, 6860, 7448, 7784, 7924, 9310, 9730, 9905, 10564, 10640, 10754, 11120, 11320, 13034, 13205, 13622, 13720, 13867, 14896, 15568, 15848, 18487, 18620, 19460, 19810, 21128, 21508, 22640, 26068, 26410, 26885, 27244, 27440, 27734, 31696, 32585, 34055, 36974, 37240, 37639, 38920, 39337, 39620, 42256, 43016, 47677, 52136, 52820, 53770, 54488, 55468, 65170, 68110, 69335, 73948, 74480, 75278, 77840, 78674, 79240, 86032, 92435, 95354, 97069, 104272, 105640, 107540, 108976, 110936, 129409, 130340, 136220, 138670, 147896, 150556, 157348, 158480, 184870, 188195, 190708, 194138, 196685, 211280, 215080, 221872, 238385, 258818, 260680, 263473, 272440, 275359, 277340, 295792, 301112, 314696, 369740, 376390, 381416, 388276, 393370, 430160, 476770, 485345, 517636, 521360, 526946, 544880, 550718, 554680, 602224, 629392, 647045, 739480, 747403, 752780, 762832, 776552, 786740, 905863, 953540, 970690, 1035272, 1053892, 1101436, 1109360, 1294090, 1317365, 1376795, 1478960, 1494806, 1505560, 1553104, 1573480, 1811726, 1844311, 1907080, 1927513, 1941380, 2070544, 2107784, 2202872, 2588180, 2634730, 2753590, 2989612, 3011120, 3146960, 3623452, 3688622, 3737015, 3814160, 3855026, 3882760, 4215568, 4405744, 4529315, 5176360, 5231821, 5269460, 5507180, 5979224, 7246904, 7377244, 7474030, 7710052, 7765520, 9058630, 9221555, 9637565, 10352720, 10463642, 10538920, 11014360, 11958448, 13492591, 14493808, 14754488, 14948060, 15420104, 18117260, 18443110, 19275130, 20927284, 21077840, 22028720, 26159105, 26985182, 29508976, 29896120, 30840208, 36234520, 36622747, 36886220, 38550260, 41854568, 52318210, 53970364, 59792240, 67462955, 72469040, 73245494, 73772440, 77100520, 83709136, 104636420, 107940728, 134925910, 146490988, 147544880, 154201040, 183113735, 209272840, 215881456, 256359229, 269851820, 292981976, 366227470, 418545680, 512718458, 539703640, 585963952, 732454940, 1025436916, 1079407280, 1281796145, 1464909880, 2050873832, 2563592290, 2929819760, 4101747664, 5127184580, 10254369160, 20508738320]

約数ペア:

[(1, 20508738320), (2, 10254369160), (4, 5127184580), (5, 4101747664), (7, 2929819760), (8, 2563592290), (10, 2050873832), (14, 1464909880), (16, 1281796145), (19, 1079407280), (20, 1025436916), (28, 732454940), (35, 585963952), (38, 539703640), (40, 512718458), (49, 418545680), (56, 366227470), (70, 292981976), (76, 269851820), (80, 256359229), (95, 215881456), (98, 209272840), (112, 183113735), (133, 154201040), (139, 147544880), (140, 146490988), (152, 134925910), (190, 107940728), (196, 104636420), (245, 83709136), (266, 77100520), (278, 73772440), (280, 73245494), (283, 72469040), (304, 67462955), (343, 59792240), (380, 53970364), (392, 52318210), (490, 41854568), (532, 38550260), (556, 36886220), (560, 36622747), (566, 36234520), (665, 30840208), (686, 29896120), (695, 29508976), (760, 26985182), (784, 26159105), (931, 22028720), (973, 21077840), (980, 20927284), (1064, 19275130), (1112, 18443110), (1132, 18117260), (1330, 15420104), (1372, 14948060), (1390, 14754488), (1415, 14493808), (1520, 13492591), (1715, 11958448), (1862, 11014360), (1946, 10538920), (1960, 10463642), (1981, 10352720), (2128, 9637565), (2224, 9221555), (2264, 9058630), (2641, 7765520), (2660, 7710052), (2744, 7474030), (2780, 7377244), (2830, 7246904), (3430, 5979224), (3724, 5507180), (3892, 5269460), (3920, 5231821), (3962, 5176360), (4528, 4529315), (4655, 4405744), (4865, 4215568), (5282, 3882760), (5320, 3855026), (5377, 3814160), (5488, 3737015), (5560, 3688622), (5660, 3623452), (6517, 3146960), (6811, 3011120), (6860, 2989612), (7448, 2753590), (7784, 2634730), (7924, 2588180), (9310, 2202872), (9730, 2107784), (9905, 2070544), (10564, 1941380), (10640, 1927513), (10754, 1907080), (11120, 1844311), (11320, 1811726), (13034, 1573480), (13205, 1553104), (13622, 1505560), (13720, 1494806), (13867, 1478960), (14896, 1376795), (15568, 1317365), (15848, 1294090), (18487, 1109360), (18620, 1101436), (19460, 1053892), (19810, 1035272), (21128, 970690), (21508, 953540), (22640, 905863), (26068, 786740), (26410, 776552), (26885, 762832), (27244, 752780), (27440, 747403), (27734, 739480), (31696, 647045), (32585, 629392), (34055, 602224), (36974, 554680), (37240, 550718), (37639, 544880), (38920, 526946), (39337, 521360), (39620, 517636), (42256, 485345), (43016, 476770), (47677, 430160), (52136, 393370), (52820, 388276), (53770, 381416), (54488, 376390), (55468, 369740), (65170, 314696), (68110, 301112), (69335, 295792), (73948, 277340), (74480, 275359), (75278, 272440), (77840, 263473), (78674, 260680), (79240, 258818), (86032, 238385), (92435, 221872), (95354, 215080), (97069, 211280), (104272, 196685), (105640, 194138), (107540, 190708), (108976, 188195), (110936, 184870), (129409, 158480), (130340, 157348), (136220, 150556), (138670, 147896)]