28345850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43609}}^1$

素因数の和:43634

約数の個数: 24

約数和(自身を含む): 56780220

約数和(自身を除く): 28434370

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 43609, 87218, 218045, 436090, 566917, 1090225, 1133834, 2180450, 2834585, 5669170, 14172925, 28345850]

約数ペア:

[(1, 28345850), (2, 14172925), (5, 5669170), (10, 2834585), (13, 2180450), (25, 1133834), (26, 1090225), (50, 566917), (65, 436090), (130, 218045), (325, 87218), (650, 43609)]