68720390

素因数分解:

$2^1\times 5^1\times {\mathrm{1609}}^1\times {\mathrm{4271}}^1$

素因数の和:5887

約数の個数: 16

約数和(自身を含む): 123802560

約数和(自身を除く): 55082170

約数列:

[1, 2, 5, 10, 1609, 3218, 4271, 8045, 8542, 16090, 21355, 42710, 6872039, 13744078, 34360195, 68720390]

約数ペア:

[(1, 68720390), (2, 34360195), (5, 13744078), (10, 6872039), (1609, 42710), (3218, 21355), (4271, 16090), (8045, 8542)]