1808472080

素因数分解:

$2^4\times 5^1\times {\mathrm{22605901}}^1$

素因数の和:22605914

約数の個数: 20

約数和(自身を含む): 4204697772

約数和(自身を除く): 2396225692

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 22605901, 45211802, 90423604, 113029505, 180847208, 226059010, 361694416, 452118020, 904236040, 1808472080]

約数ペア:

[(1, 1808472080), (2, 904236040), (4, 452118020), (5, 361694416), (8, 226059010), (10, 180847208), (16, 113029505), (20, 90423604), (40, 45211802), (80, 22605901)]