172919020

素因数分解:

$2^2\times 5^1\times {\mathrm{821}}^1\times {\mathrm{10531}}^1$

素因数の和:11361

約数の個数: 24

約数和(自身を含む): 363606768

約数和(自身を除く): 190687748

約数列:

[1, 2, 4, 5, 10, 20, 821, 1642, 3284, 4105, 8210, 10531, 16420, 21062, 42124, 52655, 105310, 210620, 8645951, 17291902, 34583804, 43229755, 86459510, 172919020]

約数ペア:

[(1, 172919020), (2, 86459510), (4, 43229755), (5, 34583804), (10, 17291902), (20, 8645951), (821, 210620), (1642, 105310), (3284, 52655), (4105, 42124), (8210, 21062), (10531, 16420)]