20524990

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{25981}}^1$

素因数の和:26067

約数の個数: 16

約数和(自身を含む): 37414080

約数和(自身を除く): 16889090

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 25981, 51962, 129905, 259810, 2052499, 4104998, 10262495, 20524990]

約数ペア:

[(1, 20524990), (2, 10262495), (5, 4104998), (10, 2052499), (79, 259810), (158, 129905), (395, 51962), (790, 25981)]