128872725

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{90437}}^1$

素因数の和:90469

約数の個数: 24

約数和(自身を含む): 224286240

約数和(自身を除く): 95413515

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 285, 475, 1425, 90437, 271311, 452185, 1356555, 1718303, 2260925, 5154909, 6782775, 8591515, 25774545, 42957575, 128872725]

約数ペア:

[(1, 128872725), (3, 42957575), (5, 25774545), (15, 8591515), (19, 6782775), (25, 5154909), (57, 2260925), (75, 1718303), (95, 1356555), (285, 452185), (475, 271311), (1425, 90437)]