19791850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{30449}}^1$

素因数の和:30474

約数の個数: 24

約数和(自身を含む): 39645900

約数和(自身を除く): 19854050

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 30449, 60898, 152245, 304490, 395837, 761225, 791674, 1522450, 1979185, 3958370, 9895925, 19791850]

約数ペア:

[(1, 19791850), (2, 9895925), (5, 3958370), (10, 1979185), (13, 1522450), (25, 791674), (26, 761225), (50, 395837), (65, 304490), (130, 152245), (325, 60898), (650, 30449)]