20729150

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31891}}^1$

素因数の和:31916

約数の個数: 24

約数和(自身を含む): 41523384

約数和(自身を除く): 20794234

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 31891, 63782, 159455, 318910, 414583, 797275, 829166, 1594550, 2072915, 4145830, 10364575, 20729150]

約数ペア:

[(1, 20729150), (2, 10364575), (5, 4145830), (10, 2072915), (13, 1594550), (25, 829166), (26, 797275), (50, 414583), (65, 318910), (130, 159455), (325, 63782), (650, 31891)]