872272180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{42467}}^1$

素因数の和:42568

約数の個数: 48

約数和(自身を含む): 1997694720

約数和(自身を除く): 1125422540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 790, 1027, 1580, 2054, 4108, 5135, 10270, 20540, 42467, 84934, 169868, 212335, 424670, 552071, 849340, 1104142, 2208284, 2760355, 3354893, 5520710, 6709786, 11041420, 13419572, 16774465, 33548930, 43613609, 67097860, 87227218, 174454436, 218068045, 436136090, 872272180]

約数ペア:

[(1, 872272180), (2, 436136090), (4, 218068045), (5, 174454436), (10, 87227218), (13, 67097860), (20, 43613609), (26, 33548930), (52, 16774465), (65, 13419572), (79, 11041420), (130, 6709786), (158, 5520710), (260, 3354893), (316, 2760355), (395, 2208284), (790, 1104142), (1027, 849340), (1580, 552071), (2054, 424670), (4108, 212335), (5135, 169868), (10270, 84934), (20540, 42467)]