208148980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{800573}}^1$

素因数の和:800595

約数の個数: 24

約数和(自身を含む): 470737512

約数和(自身を除く): 262588532

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 800573, 1601146, 3202292, 4002865, 8005730, 10407449, 16011460, 20814898, 41629796, 52037245, 104074490, 208148980]

約数ペア:

[(1, 208148980), (2, 104074490), (4, 52037245), (5, 41629796), (10, 20814898), (13, 16011460), (20, 10407449), (26, 8005730), (52, 4002865), (65, 3202292), (130, 1601146), (260, 800573)]