17996852180

素因数分解:

$2^2\times 5^1\times {\mathrm{3989}}^1\times {\mathrm{225581}}^1$

素因数の和:229579

約数の個数: 24

約数和(自身を含む): 37803031560

約数和(自身を除く): 19806179380

約数列:

[1, 2, 4, 5, 10, 20, 3989, 7978, 15956, 19945, 39890, 79780, 225581, 451162, 902324, 1127905, 2255810, 4511620, 899842609, 1799685218, 3599370436, 4499213045, 8998426090, 17996852180]

約数ペア:

[(1, 17996852180), (2, 8998426090), (4, 4499213045), (5, 3599370436), (10, 1799685218), (20, 899842609), (3989, 4511620), (7978, 2255810), (15956, 1127905), (19945, 902324), (39890, 451162), (79780, 225581)]