199985875

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{94111}}^1$

素因数の和:94143

約数の個数: 16

約数和(自身を含む): 264266496

約数和(自身を除く): 64280621

約数列:

[1, 5, 17, 25, 85, 125, 425, 2125, 94111, 470555, 1599887, 2352775, 7999435, 11763875, 39997175, 199985875]

約数ペア:

[(1, 199985875), (5, 39997175), (17, 11763875), (25, 7999435), (85, 2352775), (125, 1599887), (425, 470555), (2125, 94111)]