28239475

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{3541}}^1$

素因数の和:3591

約数の個数: 24

約数和(自身を含む): 39528720

約数和(自身を除く): 11289245

約数列:

[1, 5, 11, 25, 29, 55, 145, 275, 319, 725, 1595, 3541, 7975, 17705, 38951, 88525, 102689, 194755, 513445, 973775, 1129579, 2567225, 5647895, 28239475]

約数ペア:

[(1, 28239475), (5, 5647895), (11, 2567225), (25, 1129579), (29, 973775), (55, 513445), (145, 194755), (275, 102689), (319, 88525), (725, 38951), (1595, 17705), (3541, 7975)]