20447080

素因数分解:

$2^3\times 5^1\times {\mathrm{511177}}^1$

素因数の和:511188

約数の個数: 16

約数和(自身を含む): 46006020

約数和(自身を除く): 25558940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 511177, 1022354, 2044708, 2555885, 4089416, 5111770, 10223540, 20447080]

約数ペア:

[(1, 20447080), (2, 10223540), (4, 5111770), (5, 4089416), (8, 2555885), (10, 2044708), (20, 1022354), (40, 511177)]