64210120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:207

約数の個数: 128

約数和(自身を含む): 167932800

約数和(自身を除く): 103722680

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 67, 76, 95, 97, 104, 130, 134, 152, 190, 194, 247, 260, 268, 335, 380, 388, 485, 494, 520, 536, 670, 760, 776, 871, 970, 988, 1235, 1261, 1273, 1340, 1742, 1843, 1940, 1976, 2470, 2522, 2546, 2680, 3484, 3686, 3880, 4355, 4940, 5044, 5092, 6305, 6365, 6499, 6968, 7372, 8710, 9215, 9880, 10088, 10184, 12610, 12730, 12998, 14744, 16549, 17420, 18430, 23959, 25220, 25460, 25996, 32495, 33098, 34840, 36860, 47918, 50440, 50920, 51992, 64990, 66196, 73720, 82745, 84487, 95836, 119795, 123481, 129980, 132392, 165490, 168974, 191672, 239590, 246962, 259960, 330980, 337948, 422435, 479180, 493924, 617405, 661960, 675896, 844870, 958360, 987848, 1234810, 1605253, 1689740, 2469620, 3210506, 3379480, 4939240, 6421012, 8026265, 12842024, 16052530, 32105060, 64210120]

約数ペア:

[(1, 64210120), (2, 32105060), (4, 16052530), (5, 12842024), (8, 8026265), (10, 6421012), (13, 4939240), (19, 3379480), (20, 3210506), (26, 2469620), (38, 1689740), (40, 1605253), (52, 1234810), (65, 987848), (67, 958360), (76, 844870), (95, 675896), (97, 661960), (104, 617405), (130, 493924), (134, 479180), (152, 422435), (190, 337948), (194, 330980), (247, 259960), (260, 246962), (268, 239590), (335, 191672), (380, 168974), (388, 165490), (485, 132392), (494, 129980), (520, 123481), (536, 119795), (670, 95836), (760, 84487), (776, 82745), (871, 73720), (970, 66196), (988, 64990), (1235, 51992), (1261, 50920), (1273, 50440), (1340, 47918), (1742, 36860), (1843, 34840), (1940, 33098), (1976, 32495), (2470, 25996), (2522, 25460), (2546, 25220), (2680, 23959), (3484, 18430), (3686, 17420), (3880, 16549), (4355, 14744), (4940, 12998), (5044, 12730), (5092, 12610), (6305, 10184), (6365, 10088), (6499, 9880), (6968, 9215), (7372, 8710)]