155898320

素因数分解:

$2^4\times 5^1\times {\mathrm{1948729}}^1$

素因数の和:1948742

約数の個数: 20

約数和(自身を含む): 362463780

約数和(自身を除く): 206565460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1948729, 3897458, 7794916, 9743645, 15589832, 19487290, 31179664, 38974580, 77949160, 155898320]

約数ペア:

[(1, 155898320), (2, 77949160), (4, 38974580), (5, 31179664), (8, 19487290), (10, 15589832), (16, 9743645), (20, 7794916), (40, 3897458), (80, 1948729)]