28902220

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{5623}}^1$

素因数の和:5889

約数の個数: 24

約数和(自身を含む): 60941664

約数和(自身を除く): 32039444

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 5140, 5623, 11246, 22492, 28115, 56230, 112460, 1445111, 2890222, 5780444, 7225555, 14451110, 28902220]

約数ペア:

[(1, 28902220), (2, 14451110), (4, 7225555), (5, 5780444), (10, 2890222), (20, 1445111), (257, 112460), (514, 56230), (1028, 28115), (1285, 22492), (2570, 11246), (5140, 5623)]