320169980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1231423}}^1$

素因数の和:1231445

約数の個数: 24

約数和(自身を含む): 724077312

約数和(自身を除く): 403907332

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1231423, 2462846, 4925692, 6157115, 12314230, 16008499, 24628460, 32016998, 64033996, 80042495, 160084990, 320169980]

約数ペア:

[(1, 320169980), (2, 160084990), (4, 80042495), (5, 64033996), (10, 32016998), (13, 24628460), (20, 16008499), (26, 12314230), (52, 6157115), (65, 4925692), (130, 2462846), (260, 1231423)]