64007080

素因数分解:

$2^3\times 5^1\times {\mathrm{1600177}}^1$

素因数の和:1600188

約数の個数: 16

約数和(自身を含む): 144016020

約数和(自身を除く): 80008940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1600177, 3200354, 6400708, 8000885, 12801416, 16001770, 32003540, 64007080]

約数ペア:

[(1, 64007080), (2, 32003540), (4, 16001770), (5, 12801416), (8, 8000885), (10, 6400708), (20, 3200354), (40, 1600177)]