19850525

素因数分解:

$5^2\times {\mathrm{73}}^2\times {\mathrm{149}}^1$

素因数の和:305

約数の個数: 18

約数和(自身を含む): 25123950

約数和(自身を除く): 5273425

約数列:

[1, 5, 25, 73, 149, 365, 745, 1825, 3725, 5329, 10877, 26645, 54385, 133225, 271925, 794021, 3970105, 19850525]

約数ペア:

[(1, 19850525), (5, 3970105), (25, 794021), (73, 271925), (149, 133225), (365, 54385), (745, 26645), (1825, 10877), (3725, 5329)]