205231340

素因数分解:

$2^2\times 5^1\times {\mathrm{1907}}^1\times {\mathrm{5381}}^1$

素因数の和:7297

約数の個数: 24

約数和(自身を含む): 431291952

約数和(自身を除く): 226060612

約数列:

[1, 2, 4, 5, 10, 20, 1907, 3814, 5381, 7628, 9535, 10762, 19070, 21524, 26905, 38140, 53810, 107620, 10261567, 20523134, 41046268, 51307835, 102615670, 205231340]

約数ペア:

[(1, 205231340), (2, 102615670), (4, 51307835), (5, 41046268), (10, 20523134), (20, 10261567), (1907, 107620), (3814, 53810), (5381, 38140), (7628, 26905), (9535, 21524), (10762, 19070)]