399260075

素因数分解:

$5^2\times {\mathrm{79}}^1\times {\mathrm{113}}^1\times {\mathrm{1789}}^1$

素因数の和:1991

約数の個数: 24

約数和(自身を含む): 506068800

約数和(自身を除く): 106808725

約数列:

[1, 5, 25, 79, 113, 395, 565, 1789, 1975, 2825, 8927, 8945, 44635, 44725, 141331, 202157, 223175, 706655, 1010785, 3533275, 5053925, 15970403, 79852015, 399260075]

約数ペア:

[(1, 399260075), (5, 79852015), (25, 15970403), (79, 5053925), (113, 3533275), (395, 1010785), (565, 706655), (1789, 223175), (1975, 202157), (2825, 141331), (8927, 44725), (8945, 44635)]