138403820

素因数分解:

$2^2\times 5^1\times {\mathrm{1381}}^1\times {\mathrm{5011}}^1$

素因数の和:6401

約数の個数: 24

約数和(自身を含む): 290916528

約数和(自身を除く): 152512708

約数列:

[1, 2, 4, 5, 10, 20, 1381, 2762, 5011, 5524, 6905, 10022, 13810, 20044, 25055, 27620, 50110, 100220, 6920191, 13840382, 27680764, 34600955, 69201910, 138403820]

約数ペア:

[(1, 138403820), (2, 69201910), (4, 34600955), (5, 27680764), (10, 13840382), (20, 6920191), (1381, 100220), (2762, 50110), (5011, 27620), (5524, 25055), (6905, 20044), (10022, 13810)]