256470370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1972849}}^1$

素因数の和:1972869

約数の個数: 16

約数和(自身を含む): 497158200

約数和(自身を除く): 240687830

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 1972849, 3945698, 9864245, 19728490, 25647037, 51294074, 128235185, 256470370]

約数ペア:

[(1, 256470370), (2, 128235185), (5, 51294074), (10, 25647037), (13, 19728490), (26, 9864245), (65, 3945698), (130, 1972849)]