18291212075

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1\times {\mathrm{2221}}^1$

素因数の和:2484

約数の個数: 48

約数和(自身を含む): 23858520576

約数和(自身を除く): 5567308501

約数列:

[1, 5, 25, 43, 47, 163, 215, 235, 815, 1075, 1175, 2021, 2221, 4075, 7009, 7661, 10105, 11105, 35045, 38305, 50525, 55525, 95503, 104387, 175225, 191525, 329423, 362023, 477515, 521935, 1647115, 1810115, 2387575, 2609675, 4488641, 8235575, 9050575, 15566989, 17015081, 22443205, 77834945, 85075405, 112216025, 389174725, 425377025, 731648483, 3658242415, 18291212075]

約数ペア:

[(1, 18291212075), (5, 3658242415), (25, 731648483), (43, 425377025), (47, 389174725), (163, 112216025), (215, 85075405), (235, 77834945), (815, 22443205), (1075, 17015081), (1175, 15566989), (2021, 9050575), (2221, 8235575), (4075, 4488641), (7009, 2609675), (7661, 2387575), (10105, 1810115), (11105, 1647115), (35045, 521935), (38305, 477515), (50525, 362023), (55525, 329423), (95503, 191525), (104387, 175225)]