20654530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{158881}}^1$

素因数の和:158901

約数の個数: 16

約数和(自身を含む): 40038264

約数和(自身を除く): 19383734

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 158881, 317762, 794405, 1588810, 2065453, 4130906, 10327265, 20654530]

約数ペア:

[(1, 20654530), (2, 10327265), (5, 4130906), (10, 2065453), (13, 1588810), (26, 794405), (65, 317762), (130, 158881)]