16630225

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{223}}^1$

素因数の和:409

約数の個数: 24

約数和(自身を含む): 21943040

約数和(自身を除く): 5312815

約数列:

[1, 5, 19, 25, 95, 157, 223, 475, 785, 1115, 2983, 3925, 4237, 5575, 14915, 21185, 35011, 74575, 105925, 175055, 665209, 875275, 3326045, 16630225]

約数ペア:

[(1, 16630225), (5, 3326045), (19, 875275), (25, 665209), (95, 175055), (157, 105925), (223, 74575), (475, 35011), (785, 21185), (1115, 14915), (2983, 5575), (3925, 4237)]