3215125

素因数分解:

$5^3\times {\mathrm{17}}^2\times {\mathrm{89}}^1$

素因数の和:138

約数の個数: 24

約数和(自身を含む): 4310280

約数和(自身を除く): 1095155

約数列:

[1, 5, 17, 25, 85, 89, 125, 289, 425, 445, 1445, 1513, 2125, 2225, 7225, 7565, 11125, 25721, 36125, 37825, 128605, 189125, 643025, 3215125]

約数ペア:

[(1, 3215125), (5, 643025), (17, 189125), (25, 128605), (85, 37825), (89, 36125), (125, 25721), (289, 11125), (425, 7565), (445, 7225), (1445, 2225), (1513, 2125)]