28911875

素因数分解:

$5^4\times {\mathrm{167}}^1\times {\mathrm{277}}^1$

素因数の和:464

約数の個数: 20

約数和(自身を含む): 36475824

約数和(自身を除く): 7563949

約数列:

[1, 5, 25, 125, 167, 277, 625, 835, 1385, 4175, 6925, 20875, 34625, 46259, 104375, 173125, 231295, 1156475, 5782375, 28911875]

約数ペア:

[(1, 28911875), (5, 5782375), (25, 1156475), (125, 231295), (167, 173125), (277, 104375), (625, 46259), (835, 34625), (1385, 20875), (4175, 6925)]