19902910

素因数分解:

$2^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{10103}}^1$

素因数の和:10307

約数の個数: 16

約数和(自身を含む): 36010656

約数和(自身を除く): 16107746

約数列:

[1, 2, 5, 10, 197, 394, 985, 1970, 10103, 20206, 50515, 101030, 1990291, 3980582, 9951455, 19902910]

約数ペア:

[(1, 19902910), (2, 9951455), (5, 3980582), (10, 1990291), (197, 101030), (394, 50515), (985, 20206), (1970, 10103)]