261605825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{804941}}^1$

素因数の和:804964

約数の個数: 12

約数和(自身を含む): 349344828

約数和(自身を除く): 87739003

約数列:

[1, 5, 13, 25, 65, 325, 804941, 4024705, 10464233, 20123525, 52321165, 261605825]

約数ペア:

[(1, 261605825), (5, 52321165), (13, 20123525), (25, 10464233), (65, 4024705), (325, 804941)]