246997640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{2999}}^1$

素因数の和:3110

約数の個数: 64

約数和(自身を含む): 583200000

約数和(自身を除く): 336202360

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 71, 116, 142, 145, 232, 284, 290, 355, 568, 580, 710, 1160, 1420, 2059, 2840, 2999, 4118, 5998, 8236, 10295, 11996, 14995, 16472, 20590, 23992, 29990, 41180, 59980, 82360, 86971, 119960, 173942, 212929, 347884, 425858, 434855, 695768, 851716, 869710, 1064645, 1703432, 1739420, 2129290, 3478840, 4258580, 6174941, 8517160, 12349882, 24699764, 30874705, 49399528, 61749410, 123498820, 246997640]

約数ペア:

[(1, 246997640), (2, 123498820), (4, 61749410), (5, 49399528), (8, 30874705), (10, 24699764), (20, 12349882), (29, 8517160), (40, 6174941), (58, 4258580), (71, 3478840), (116, 2129290), (142, 1739420), (145, 1703432), (232, 1064645), (284, 869710), (290, 851716), (355, 695768), (568, 434855), (580, 425858), (710, 347884), (1160, 212929), (1420, 173942), (2059, 119960), (2840, 86971), (2999, 82360), (4118, 59980), (5998, 41180), (8236, 29990), (10295, 23992), (11996, 20590), (14995, 16472)]