299975

素因数分解:

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

素因数の和:107

約数の個数: 18

約数和(自身を含む): 408456

約数和(自身を除く): 108481

約数列:

[1, 5, 13, 25, 65, 71, 169, 325, 355, 845, 923, 1775, 4225, 4615, 11999, 23075, 59995, 299975]

約数ペア:

[(1, 299975), (5, 59995), (13, 23075), (25, 11999), (65, 4615), (71, 4225), (169, 1775), (325, 923), (355, 845)]