425620610

素因数分解:

$2^1\times 5^1\times {\mathrm{1997}}^1\times {\mathrm{21313}}^1$

素因数の和:23317

約数の個数: 16

約数和(自身を含む): 766536696

約数和(自身を除く): 340916086

約数列:

[1, 2, 5, 10, 1997, 3994, 9985, 19970, 21313, 42626, 106565, 213130, 42562061, 85124122, 212810305, 425620610]

約数ペア:

[(1, 425620610), (2, 212810305), (5, 85124122), (10, 42562061), (1997, 213130), (3994, 106565), (9985, 42626), (19970, 21313)]