18352420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{22381}}^1$

素因数の和:22431

約数の個数: 24

約数和(自身を含む): 39481848

約数和(自身を除く): 21129428

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 22381, 44762, 89524, 111905, 223810, 447620, 917621, 1835242, 3670484, 4588105, 9176210, 18352420]

約数ペア:

[(1, 18352420), (2, 9176210), (4, 4588105), (5, 3670484), (10, 1835242), (20, 917621), (41, 447620), (82, 223810), (164, 111905), (205, 89524), (410, 44762), (820, 22381)]