7920460

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1657}}^1$

素因数の和:1905

約数の個数: 24

約数和(自身を含む): 16712640

約数和(自身を除く): 8792180

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 1657, 2390, 3314, 4780, 6628, 8285, 16570, 33140, 396023, 792046, 1584092, 1980115, 3960230, 7920460]

約数ペア:

[(1, 7920460), (2, 3960230), (4, 1980115), (5, 1584092), (10, 792046), (20, 396023), (239, 33140), (478, 16570), (956, 8285), (1195, 6628), (1657, 4780), (2390, 3314)]