15920325

素因数分解:

$3^2\times 5^2\times {\mathrm{173}}^1\times {\mathrm{409}}^1$

素因数の和:598

約数の個数: 36

約数和(自身を含む): 28750020

約数和(自身を除く): 12829695

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 173, 225, 409, 519, 865, 1227, 1557, 2045, 2595, 3681, 4325, 6135, 7785, 10225, 12975, 18405, 30675, 38925, 70757, 92025, 212271, 353785, 636813, 1061355, 1768925, 3184065, 5306775, 15920325]

約数ペア:

[(1, 15920325), (3, 5306775), (5, 3184065), (9, 1768925), (15, 1061355), (25, 636813), (45, 353785), (75, 212271), (173, 92025), (225, 70757), (409, 38925), (519, 30675), (865, 18405), (1227, 12975), (1557, 10225), (2045, 7785), (2595, 6135), (3681, 4325)]