1288357820

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{739}}^1\times {\mathrm{1429}}^1$

素因数の和:2238

約数の個数: 48

約数和(自身を含む): 2755552800

約数和(自身を除く): 1467194980

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 739, 1220, 1429, 1478, 2858, 2956, 3695, 5716, 7145, 7390, 14290, 14780, 28580, 45079, 87169, 90158, 174338, 180316, 225395, 348676, 435845, 450790, 871690, 901580, 1056031, 1743380, 2112062, 4224124, 5280155, 10560310, 21120620, 64417891, 128835782, 257671564, 322089455, 644178910, 1288357820]

約数ペア:

[(1, 1288357820), (2, 644178910), (4, 322089455), (5, 257671564), (10, 128835782), (20, 64417891), (61, 21120620), (122, 10560310), (244, 5280155), (305, 4224124), (610, 2112062), (739, 1743380), (1220, 1056031), (1429, 901580), (1478, 871690), (2858, 450790), (2956, 435845), (3695, 348676), (5716, 225395), (7145, 180316), (7390, 174338), (14290, 90158), (14780, 87169), (28580, 45079)]