7890125

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:158

約数の個数: 32

約数和(自身を含む): 10782720

約数和(自身を除く): 2892595

約数列:

[1, 5, 17, 25, 47, 79, 85, 125, 235, 395, 425, 799, 1175, 1343, 1975, 2125, 3713, 3995, 5875, 6715, 9875, 18565, 19975, 33575, 63121, 92825, 99875, 167875, 315605, 464125, 1578025, 7890125]

約数ペア:

[(1, 7890125), (5, 1578025), (17, 464125), (25, 315605), (47, 167875), (79, 99875), (85, 92825), (125, 63121), (235, 33575), (395, 19975), (425, 18565), (799, 9875), (1175, 6715), (1343, 5875), (1975, 3995), (2125, 3713)]