815267080

素因数分解:

$2^3\times 5^1\times {\mathrm{20381677}}^1$

素因数の和:20381688

約数の個数: 16

約数和(自身を含む): 1834351020

約数和(自身を除く): 1019083940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 20381677, 40763354, 81526708, 101908385, 163053416, 203816770, 407633540, 815267080]

約数ペア:

[(1, 815267080), (2, 407633540), (4, 203816770), (5, 163053416), (8, 101908385), (10, 81526708), (20, 40763354), (40, 20381677)]