28677620

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{9133}}^1$

素因数の和:9299

約数の個数: 24

約数和(自身を含む): 60613224

約数和(自身を除く): 31935604

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 9133, 18266, 36532, 45665, 91330, 182660, 1433881, 2867762, 5735524, 7169405, 14338810, 28677620]

約数ペア:

[(1, 28677620), (2, 14338810), (4, 7169405), (5, 5735524), (10, 2867762), (20, 1433881), (157, 182660), (314, 91330), (628, 45665), (785, 36532), (1570, 18266), (3140, 9133)]