78801259210

素因数分解:

$2^1\times 5^1\times {\mathrm{7880125921}}^1$

素因数の和:7880125928

約数の個数: 8

約数和(自身を含む): 141842266596

約数和(自身を除く): 63041007386

約数列:

[1, 2, 5, 10, 7880125921, 15760251842, 39400629605, 78801259210]

約数ペア:

[(1, 78801259210), (2, 39400629605), (5, 15760251842), (10, 7880125921)]