309344720

素因数分解:

$2^4\times 5^1\times {\mathrm{3866809}}^1$

素因数の和:3866822

約数の個数: 20

約数和(自身を含む): 719226660

約数和(自身を除く): 409881940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3866809, 7733618, 15467236, 19334045, 30934472, 38668090, 61868944, 77336180, 154672360, 309344720]

約数ペア:

[(1, 309344720), (2, 154672360), (4, 77336180), (5, 61868944), (8, 38668090), (10, 30934472), (16, 19334045), (20, 15467236), (40, 7733618), (80, 3866809)]