20209240

素因数分解:

$2^3\times 5^1\times {\mathrm{505231}}^1$

素因数の和:505242

約数の個数: 16

約数和(自身を含む): 45470880

約数和(自身を除く): 25261640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 505231, 1010462, 2020924, 2526155, 4041848, 5052310, 10104620, 20209240]

約数ペア:

[(1, 20209240), (2, 10104620), (4, 5052310), (5, 4041848), (8, 2526155), (10, 2020924), (20, 1010462), (40, 505231)]