12855625

素因数分解:

$5^4\times {\mathrm{67}}^1\times {\mathrm{307}}^1$

素因数の和:394

約数の個数: 20

約数和(自身を含む): 16357264

約数和(自身を除く): 3501639

約数列:

[1, 5, 25, 67, 125, 307, 335, 625, 1535, 1675, 7675, 8375, 20569, 38375, 41875, 102845, 191875, 514225, 2571125, 12855625]

約数ペア:

[(1, 12855625), (5, 2571125), (25, 514225), (67, 191875), (125, 102845), (307, 41875), (335, 38375), (625, 20569), (1535, 8375), (1675, 7675)]