28220580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{156781}}^1$

素因数の和:156796

約数の個数: 36

約数和(自身を含む): 85602972

約数和(自身を除く): 57382392

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 156781, 313562, 470343, 627124, 783905, 940686, 1411029, 1567810, 1881372, 2351715, 2822058, 3135620, 4703430, 5644116, 7055145, 9406860, 14110290, 28220580]

約数ペア:

[(1, 28220580), (2, 14110290), (3, 9406860), (4, 7055145), (5, 5644116), (6, 4703430), (9, 3135620), (10, 2822058), (12, 2351715), (15, 1881372), (18, 1567810), (20, 1411029), (30, 940686), (36, 783905), (45, 627124), (60, 470343), (90, 313562), (180, 156781)]