317664080

素因数分解:

$2^4\times 5^1\times {\mathrm{3970801}}^1$

素因数の和:3970814

約数の個数: 20

約数和(自身を含む): 738569172

約数和(自身を除く): 420905092

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3970801, 7941602, 15883204, 19854005, 31766408, 39708010, 63532816, 79416020, 158832040, 317664080]

約数ペア:

[(1, 317664080), (2, 158832040), (4, 79416020), (5, 63532816), (8, 39708010), (10, 31766408), (16, 19854005), (20, 15883204), (40, 7941602), (80, 3970801)]