28756460

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{8821}}^1$

素因数の和:8993

約数の個数: 24

約数和(自身を含む): 60765936

約数和(自身を除く): 32009476

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 8821, 17642, 35284, 44105, 88210, 176420, 1437823, 2875646, 5751292, 7189115, 14378230, 28756460]

約数ペア:

[(1, 28756460), (2, 14378230), (4, 7189115), (5, 5751292), (10, 2875646), (20, 1437823), (163, 176420), (326, 88210), (652, 44105), (815, 35284), (1630, 17642), (3260, 8821)]