17216875

素因数分解:

$5^4\times {\mathrm{13}}^2\times {\mathrm{163}}^1$

素因数の和:209

約数の個数: 30

約数和(自身を含む): 23439372

約数和(自身を除く): 6222497

約数列:

[1, 5, 13, 25, 65, 125, 163, 169, 325, 625, 815, 845, 1625, 2119, 4075, 4225, 8125, 10595, 20375, 21125, 27547, 52975, 101875, 105625, 137735, 264875, 688675, 1324375, 3443375, 17216875]

約数ペア:

[(1, 17216875), (5, 3443375), (13, 1324375), (25, 688675), (65, 264875), (125, 137735), (163, 105625), (169, 101875), (325, 52975), (625, 27547), (815, 21125), (845, 20375), (1625, 10595), (2119, 8125), (4075, 4225)]