20887100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{16067}}^1$

素因数の和:16094

約数の個数: 36

約数和(自身を含む): 48814584

約数和(自身を除く): 27927484

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 16067, 32134, 64268, 80335, 160670, 208871, 321340, 401675, 417742, 803350, 835484, 1044355, 1606700, 2088710, 4177420, 5221775, 10443550, 20887100]

約数ペア:

[(1, 20887100), (2, 10443550), (4, 5221775), (5, 4177420), (10, 2088710), (13, 1606700), (20, 1044355), (25, 835484), (26, 803350), (50, 417742), (52, 401675), (65, 321340), (100, 208871), (130, 160670), (260, 80335), (325, 64268), (650, 32134), (1300, 16067)]