20874948640

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6607}}^1$

素因数の和:6680

約数の個数: 288

約数和(自身を含む): 63784433664

約数和(自身を除く): 42909485024

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 31, 32, 35, 40, 49, 52, 56, 62, 65, 70, 80, 91, 98, 104, 112, 124, 130, 140, 155, 160, 182, 196, 208, 217, 224, 245, 248, 260, 280, 310, 364, 392, 403, 416, 434, 455, 490, 496, 520, 560, 620, 637, 728, 784, 806, 868, 910, 980, 992, 1040, 1085, 1120, 1240, 1274, 1456, 1519, 1568, 1612, 1736, 1820, 1960, 2015, 2080, 2170, 2480, 2548, 2821, 2912, 3038, 3185, 3224, 3472, 3640, 3920, 4030, 4340, 4960, 5096, 5642, 6076, 6370, 6448, 6607, 6944, 7280, 7595, 7840, 8060, 8680, 10192, 11284, 12152, 12740, 12896, 13214, 14105, 14560, 15190, 16120, 17360, 19747, 20384, 22568, 24304, 25480, 26428, 28210, 30380, 32240, 33035, 34720, 39494, 45136, 46249, 48608, 50960, 52856, 56420, 60760, 64480, 66070, 78988, 85891, 90272, 92498, 98735, 101920, 105712, 112840, 121520, 132140, 157976, 171782, 184996, 197470, 204817, 211424, 225680, 231245, 243040, 264280, 315952, 323743, 343564, 369992, 394940, 409634, 429455, 451360, 462490, 528560, 601237, 631904, 647486, 687128, 739984, 789880, 819268, 858910, 924980, 1024085, 1057120, 1202474, 1294972, 1374256, 1433719, 1479968, 1579760, 1618715, 1638536, 1717820, 1849960, 2048170, 2404948, 2589944, 2662621, 2748512, 2867438, 3006185, 3159520, 3237430, 3277072, 3435640, 3699920, 4096340, 4208659, 4809896, 5179888, 5325242, 5734876, 6012370, 6474860, 6554144, 6871280, 7168595, 7399840, 8192680, 8417318, 9619792, 10036033, 10359776, 10650484, 11469752, 12024740, 12949720, 13313105, 13742560, 14337190, 16385360, 16834636, 18638347, 19239584, 20072066, 21043295, 21300968, 22939504, 24049480, 25899440, 26626210, 28674380, 32770720, 33669272, 37276694, 40144132, 42086590, 42601936, 45879008, 48098960, 50180165, 51798880, 53252420, 57348760, 67338544, 74553388, 80288264, 84173180, 85203872, 93191735, 96197920, 100360330, 106504840, 114697520, 130468429, 134677088, 149106776, 160576528, 168346360, 186383470, 200720660, 213009680, 229395040, 260936858, 298213552, 321153056, 336692720, 372766940, 401441320, 426019360, 521873716, 596427104, 652342145, 673385440, 745533880, 802882640, 1043747432, 1304684290, 1491067760, 1605765280, 2087494864, 2609368580, 2982135520, 4174989728, 5218737160, 10437474320, 20874948640]

約数ペア:

[(1, 20874948640), (2, 10437474320), (4, 5218737160), (5, 4174989728), (7, 2982135520), (8, 2609368580), (10, 2087494864), (13, 1605765280), (14, 1491067760), (16, 1304684290), (20, 1043747432), (26, 802882640), (28, 745533880), (31, 673385440), (32, 652342145), (35, 596427104), (40, 521873716), (49, 426019360), (52, 401441320), (56, 372766940), (62, 336692720), (65, 321153056), (70, 298213552), (80, 260936858), (91, 229395040), (98, 213009680), (104, 200720660), (112, 186383470), (124, 168346360), (130, 160576528), (140, 149106776), (155, 134677088), (160, 130468429), (182, 114697520), (196, 106504840), (208, 100360330), (217, 96197920), (224, 93191735), (245, 85203872), (248, 84173180), (260, 80288264), (280, 74553388), (310, 67338544), (364, 57348760), (392, 53252420), (403, 51798880), (416, 50180165), (434, 48098960), (455, 45879008), (490, 42601936), (496, 42086590), (520, 40144132), (560, 37276694), (620, 33669272), (637, 32770720), (728, 28674380), (784, 26626210), (806, 25899440), (868, 24049480), (910, 22939504), (980, 21300968), (992, 21043295), (1040, 20072066), (1085, 19239584), (1120, 18638347), (1240, 16834636), (1274, 16385360), (1456, 14337190), (1519, 13742560), (1568, 13313105), (1612, 12949720), (1736, 12024740), (1820, 11469752), (1960, 10650484), (2015, 10359776), (2080, 10036033), (2170, 9619792), (2480, 8417318), (2548, 8192680), (2821, 7399840), (2912, 7168595), (3038, 6871280), (3185, 6554144), (3224, 6474860), (3472, 6012370), (3640, 5734876), (3920, 5325242), (4030, 5179888), (4340, 4809896), (4960, 4208659), (5096, 4096340), (5642, 3699920), (6076, 3435640), (6370, 3277072), (6448, 3237430), (6607, 3159520), (6944, 3006185), (7280, 2867438), (7595, 2748512), (7840, 2662621), (8060, 2589944), (8680, 2404948), (10192, 2048170), (11284, 1849960), (12152, 1717820), (12740, 1638536), (12896, 1618715), (13214, 1579760), (14105, 1479968), (14560, 1433719), (15190, 1374256), (16120, 1294972), (17360, 1202474), (19747, 1057120), (20384, 1024085), (22568, 924980), (24304, 858910), (25480, 819268), (26428, 789880), (28210, 739984), (30380, 687128), (32240, 647486), (33035, 631904), (34720, 601237), (39494, 528560), (45136, 462490), (46249, 451360), (48608, 429455), (50960, 409634), (52856, 394940), (56420, 369992), (60760, 343564), (64480, 323743), (66070, 315952), (78988, 264280), (85891, 243040), (90272, 231245), (92498, 225680), (98735, 211424), (101920, 204817), (105712, 197470), (112840, 184996), (121520, 171782), (132140, 157976)]