28647725

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1471}}^1$

素因数の和:1541

約数の個数: 24

約数和(自身を含む): 38330880

約数和(自身を除く): 9683155

約数列:

[1, 5, 19, 25, 41, 95, 205, 475, 779, 1025, 1471, 3895, 7355, 19475, 27949, 36775, 60311, 139745, 301555, 698725, 1145909, 1507775, 5729545, 28647725]

約数ペア:

[(1, 28647725), (5, 5729545), (19, 1507775), (25, 1145909), (41, 698725), (95, 301555), (205, 139745), (475, 60311), (779, 36775), (1025, 27949), (1471, 19475), (3895, 7355)]