64770625

素因数分解:

$5^4\times {\mathrm{31}}^1\times {\mathrm{3343}}^1$

素因数の和:3394

約数の個数: 20

約数和(自身を含む): 83573248

約数和(自身を除く): 18802623

約数列:

[1, 5, 25, 31, 125, 155, 625, 775, 3343, 3875, 16715, 19375, 83575, 103633, 417875, 518165, 2089375, 2590825, 12954125, 64770625]

約数ペア:

[(1, 64770625), (5, 12954125), (25, 2590825), (31, 2089375), (125, 518165), (155, 417875), (625, 103633), (775, 83575), (3343, 19375), (3875, 16715)]