28497625

素因数分解:

$5^3\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:131

約数の個数: 48

約数和(自身を含む): 41109120

約数和(自身を除く): 12611495

約数列:

[1, 5, 13, 19, 25, 65, 71, 95, 125, 169, 247, 325, 355, 475, 845, 923, 1235, 1349, 1625, 1775, 2375, 3211, 4225, 4615, 6175, 6745, 8875, 11999, 16055, 17537, 21125, 23075, 30875, 33725, 59995, 80275, 87685, 115375, 168625, 227981, 299975, 401375, 438425, 1139905, 1499875, 2192125, 5699525, 28497625]

約数ペア:

[(1, 28497625), (5, 5699525), (13, 2192125), (19, 1499875), (25, 1139905), (65, 438425), (71, 401375), (95, 299975), (125, 227981), (169, 168625), (247, 115375), (325, 87685), (355, 80275), (475, 59995), (845, 33725), (923, 30875), (1235, 23075), (1349, 21125), (1625, 17537), (1775, 16055), (2375, 11999), (3211, 8875), (4225, 6745), (4615, 6175)]