28288420

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{12517}}^1$

素因数の和:12639

約数の個数: 24

約数和(自身を含む): 59936184

約数和(自身を除く): 31647764

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 12517, 25034, 50068, 62585, 125170, 250340, 1414421, 2828842, 5657684, 7072105, 14144210, 28288420]

約数ペア:

[(1, 28288420), (2, 14144210), (4, 7072105), (5, 5657684), (10, 2828842), (20, 1414421), (113, 250340), (226, 125170), (452, 62585), (565, 50068), (1130, 25034), (2260, 12517)]