80354375

素因数分解:

$5^4\times {\mathrm{83}}^1\times {\mathrm{1549}}^1$

素因数の和:1652

約数の個数: 20

約数和(自身を含む): 101686200

約数和(自身を除く): 21331825

約数列:

[1, 5, 25, 83, 125, 415, 625, 1549, 2075, 7745, 10375, 38725, 51875, 128567, 193625, 642835, 968125, 3214175, 16070875, 80354375]

約数ペア:

[(1, 80354375), (5, 16070875), (25, 3214175), (83, 968125), (125, 642835), (415, 193625), (625, 128567), (1549, 51875), (2075, 38725), (7745, 10375)]