2864947640

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1\times {\mathrm{5009}}^1$

素因数の和:5280

約数の個数: 64

約数和(自身を含む): 6565104000

約数和(自身を除く): 3700156360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 181, 316, 362, 395, 632, 724, 790, 905, 1448, 1580, 1810, 3160, 3620, 5009, 7240, 10018, 14299, 20036, 25045, 28598, 40072, 50090, 57196, 71495, 100180, 114392, 142990, 200360, 285980, 395711, 571960, 791422, 906629, 1582844, 1813258, 1978555, 3165688, 3626516, 3957110, 4533145, 7253032, 7914220, 9066290, 15828440, 18132580, 36265160, 71623691, 143247382, 286494764, 358118455, 572989528, 716236910, 1432473820, 2864947640]

約数ペア:

[(1, 2864947640), (2, 1432473820), (4, 716236910), (5, 572989528), (8, 358118455), (10, 286494764), (20, 143247382), (40, 71623691), (79, 36265160), (158, 18132580), (181, 15828440), (316, 9066290), (362, 7914220), (395, 7253032), (632, 4533145), (724, 3957110), (790, 3626516), (905, 3165688), (1448, 1978555), (1580, 1813258), (1810, 1582844), (3160, 906629), (3620, 791422), (5009, 571960), (7240, 395711), (10018, 285980), (14299, 200360), (20036, 142990), (25045, 114392), (28598, 100180), (40072, 71495), (50090, 57196)]