1981056290

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{494029}}^1$

素因数の和:494437

約数の個数: 16

約数和(自身を含む): 3574801080

約数和(自身を除く): 1593744790

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 494029, 988058, 2470145, 4940290, 198105629, 396211258, 990528145, 1981056290]

約数ペア:

[(1, 1981056290), (2, 990528145), (5, 396211258), (10, 198105629), (401, 4940290), (802, 2470145), (2005, 988058), (4010, 494029)]