402899240

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{89137}}^1$

素因数の和:89261

約数の個数: 32

約数和(自身を含む): 914555880

約数和(自身を除く): 511656640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 89137, 178274, 356548, 445685, 713096, 891370, 1782740, 3565480, 10072481, 20144962, 40289924, 50362405, 80579848, 100724810, 201449620, 402899240]

約数ペア:

[(1, 402899240), (2, 201449620), (4, 100724810), (5, 80579848), (8, 50362405), (10, 40289924), (20, 20144962), (40, 10072481), (113, 3565480), (226, 1782740), (452, 891370), (565, 713096), (904, 445685), (1130, 356548), (2260, 178274), (4520, 89137)]