157418320

素因数分解:

$2^4\times 5^1\times {\mathrm{1967729}}^1$

素因数の和:1967742

約数の個数: 20

約数和(自身を含む): 365997780

約数和(自身を除く): 208579460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1967729, 3935458, 7870916, 9838645, 15741832, 19677290, 31483664, 39354580, 78709160, 157418320]

約数ペア:

[(1, 157418320), (2, 78709160), (4, 39354580), (5, 31483664), (8, 19677290), (10, 15741832), (16, 9838645), (20, 7870916), (40, 3935458), (80, 1967729)]