7888926490

素因数分解:

$2^1\times 5^1\times {\mathrm{1987}}^1\times {\mathrm{397027}}^1$

素因数の和:399021

約数の個数: 16

約数和(自身を含む): 14207249952

約数和(自身を除く): 6318323462

約数列:

[1, 2, 5, 10, 1987, 3974, 9935, 19870, 397027, 794054, 1985135, 3970270, 788892649, 1577785298, 3944463245, 7888926490]

約数ペア:

[(1, 7888926490), (2, 3944463245), (5, 1577785298), (10, 788892649), (1987, 3970270), (3974, 1985135), (9935, 794054), (19870, 397027)]