25817620

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{12781}}^1$

素因数の和:12891

約数の個数: 24

約数和(自身を含む): 54758088

約数和(自身を除く): 28940468

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 12781, 25562, 51124, 63905, 127810, 255620, 1290881, 2581762, 5163524, 6454405, 12908810, 25817620]

約数ペア:

[(1, 25817620), (2, 12908810), (4, 6454405), (5, 5163524), (10, 2581762), (20, 1290881), (101, 255620), (202, 127810), (404, 63905), (505, 51124), (1010, 25562), (2020, 12781)]