51635240

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{12781}}^1$

素因数の和:12893

約数の個数: 32

約数和(自身を含む): 117338760

約数和(自身を除く): 65703520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 12781, 25562, 51124, 63905, 102248, 127810, 255620, 511240, 1290881, 2581762, 5163524, 6454405, 10327048, 12908810, 25817620, 51635240]

約数ペア:

[(1, 51635240), (2, 25817620), (4, 12908810), (5, 10327048), (8, 6454405), (10, 5163524), (20, 2581762), (40, 1290881), (101, 511240), (202, 255620), (404, 127810), (505, 102248), (808, 63905), (1010, 51124), (2020, 25562), (4040, 12781)]