12939420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{313}}^1$

素因数の和:391

約数の個数: 96

約数和(自身を含む): 39880512

約数和(自身を除く): 26941092

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 53, 60, 65, 78, 106, 130, 156, 159, 195, 212, 260, 265, 313, 318, 390, 530, 626, 636, 689, 780, 795, 939, 1060, 1252, 1378, 1565, 1590, 1878, 2067, 2756, 3130, 3180, 3445, 3756, 4069, 4134, 4695, 6260, 6890, 8138, 8268, 9390, 10335, 12207, 13780, 16276, 16589, 18780, 20345, 20670, 24414, 33178, 40690, 41340, 48828, 49767, 61035, 66356, 81380, 82945, 99534, 122070, 165890, 199068, 215657, 244140, 248835, 331780, 431314, 497670, 646971, 862628, 995340, 1078285, 1293942, 2156570, 2587884, 3234855, 4313140, 6469710, 12939420]

約数ペア:

[(1, 12939420), (2, 6469710), (3, 4313140), (4, 3234855), (5, 2587884), (6, 2156570), (10, 1293942), (12, 1078285), (13, 995340), (15, 862628), (20, 646971), (26, 497670), (30, 431314), (39, 331780), (52, 248835), (53, 244140), (60, 215657), (65, 199068), (78, 165890), (106, 122070), (130, 99534), (156, 82945), (159, 81380), (195, 66356), (212, 61035), (260, 49767), (265, 48828), (313, 41340), (318, 40690), (390, 33178), (530, 24414), (626, 20670), (636, 20345), (689, 18780), (780, 16589), (795, 16276), (939, 13780), (1060, 12207), (1252, 10335), (1378, 9390), (1565, 8268), (1590, 8138), (1878, 6890), (2067, 6260), (2756, 4695), (3130, 4134), (3180, 4069), (3445, 3756)]