16691875

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{1571}}^1$

素因数の和:1608

約数の個数: 20

約数和(自身を含む): 22099176

約数和(自身を除く): 5407301

約数列:

[1, 5, 17, 25, 85, 125, 425, 625, 1571, 2125, 7855, 10625, 26707, 39275, 133535, 196375, 667675, 981875, 3338375, 16691875]

約数ペア:

[(1, 16691875), (5, 3338375), (17, 981875), (25, 667675), (85, 196375), (125, 133535), (425, 39275), (625, 26707), (1571, 10625), (2125, 7855)]