200657420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{323641}}^1$

素因数の和:323681

約数の個数: 24

約数和(自身を含む): 434974848

約数和(自身を除く): 234317428

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 323641, 647282, 1294564, 1618205, 3236410, 6472820, 10032871, 20065742, 40131484, 50164355, 100328710, 200657420]

約数ペア:

[(1, 200657420), (2, 100328710), (4, 50164355), (5, 40131484), (10, 20065742), (20, 10032871), (31, 6472820), (62, 3236410), (124, 1618205), (155, 1294564), (310, 647282), (620, 323641)]