77691875

素因数分解:

$5^4\times {\mathrm{197}}^1\times {\mathrm{631}}^1$

素因数の和:848

約数の個数: 20

約数和(自身を含む): 97731216

約数和(自身を除く): 20039341

約数列:

[1, 5, 25, 125, 197, 625, 631, 985, 3155, 4925, 15775, 24625, 78875, 123125, 124307, 394375, 621535, 3107675, 15538375, 77691875]

約数ペア:

[(1, 77691875), (5, 15538375), (25, 3107675), (125, 621535), (197, 394375), (625, 124307), (631, 123125), (985, 78875), (3155, 24625), (4925, 15775)]