81479060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{313381}}^1$

素因数の和:313403

約数の個数: 24

約数和(自身を含む): 184268616

約数和(自身を除く): 102789556

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 313381, 626762, 1253524, 1566905, 3133810, 4073953, 6267620, 8147906, 16295812, 20369765, 40739530, 81479060]

約数ペア:

[(1, 81479060), (2, 40739530), (4, 20369765), (5, 16295812), (10, 8147906), (13, 6267620), (20, 4073953), (26, 3133810), (52, 1566905), (65, 1253524), (130, 626762), (260, 313381)]