155281640

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{9221}}^1$

素因数の和:9653

約数の個数: 32

約数和(自身を含む): 350251560

約数和(自身を除く): 194969920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 2105, 3368, 4210, 8420, 9221, 16840, 18442, 36884, 46105, 73768, 92210, 184420, 368840, 3882041, 7764082, 15528164, 19410205, 31056328, 38820410, 77640820, 155281640]

約数ペア:

[(1, 155281640), (2, 77640820), (4, 38820410), (5, 31056328), (8, 19410205), (10, 15528164), (20, 7764082), (40, 3882041), (421, 368840), (842, 184420), (1684, 92210), (2105, 73768), (3368, 46105), (4210, 36884), (8420, 18442), (9221, 16840)]