74989525

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{17749}}^1$

素因数の和:17785

約数の個数: 18

約数和(自身を含む): 100695750

約数和(自身を除く): 25706225

約数列:

[1, 5, 13, 25, 65, 169, 325, 845, 4225, 17749, 88745, 230737, 443725, 1153685, 2999581, 5768425, 14997905, 74989525]

約数ペア:

[(1, 74989525), (5, 14997905), (13, 5768425), (25, 2999581), (65, 1153685), (169, 443725), (325, 230737), (845, 88745), (4225, 17749)]