83861875

素因数分解:

$5^4\times {\mathrm{109}}^1\times {\mathrm{1231}}^1$

素因数の和:1360

約数の個数: 20

約数和(自身を含む): 105841120

約数和(自身を除く): 21979245

約数列:

[1, 5, 25, 109, 125, 545, 625, 1231, 2725, 6155, 13625, 30775, 68125, 134179, 153875, 670895, 769375, 3354475, 16772375, 83861875]

約数ペア:

[(1, 83861875), (5, 16772375), (25, 3354475), (109, 769375), (125, 670895), (545, 153875), (625, 134179), (1231, 68125), (2725, 30775), (6155, 13625)]