638572040

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{141277}}^1$

素因数の和:141401

約数の個数: 32

約数和(自身を含む): 1449512280

約数和(自身を除く): 810940240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 141277, 282554, 565108, 706385, 1130216, 1412770, 2825540, 5651080, 15964301, 31928602, 63857204, 79821505, 127714408, 159643010, 319286020, 638572040]

約数ペア:

[(1, 638572040), (2, 319286020), (4, 159643010), (5, 127714408), (8, 79821505), (10, 63857204), (20, 31928602), (40, 15964301), (113, 5651080), (226, 2825540), (452, 1412770), (565, 1130216), (904, 706385), (1130, 565108), (2260, 282554), (4520, 141277)]