28240725

素因数分解:

$3^1\times 5^2\times {\mathrm{193}}^1\times {\mathrm{1951}}^1$

素因数の和:2157

約数の個数: 24

約数和(自身を含む): 46957312

約数和(自身を除く): 18716587

約数列:

[1, 3, 5, 15, 25, 75, 193, 579, 965, 1951, 2895, 4825, 5853, 9755, 14475, 29265, 48775, 146325, 376543, 1129629, 1882715, 5648145, 9413575, 28240725]

約数ペア:

[(1, 28240725), (3, 9413575), (5, 5648145), (15, 1882715), (25, 1129629), (75, 376543), (193, 146325), (579, 48775), (965, 29265), (1951, 14475), (2895, 9755), (4825, 5853)]