809807080

素因数分解:

$2^3\times 5^1\times {\mathrm{20245177}}^1$

素因数の和:20245188

約数の個数: 16

約数和(自身を含む): 1822066020

約数和(自身を除く): 1012258940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 20245177, 40490354, 80980708, 101225885, 161961416, 202451770, 404903540, 809807080]

約数ペア:

[(1, 809807080), (2, 404903540), (4, 202451770), (5, 161961416), (8, 101225885), (10, 80980708), (20, 40490354), (40, 20245177)]