16129620625

素因数分解:

$5^4\times {\mathrm{131}}^1\times {\mathrm{197003}}^1$

素因数の和:197154

約数の個数: 20

約数和(自身を含む): 20309536368

約数和(自身を除く): 4179915743

約数列:

[1, 5, 25, 125, 131, 625, 655, 3275, 16375, 81875, 197003, 985015, 4925075, 24625375, 25807393, 123126875, 129036965, 645184825, 3225924125, 16129620625]

約数ペア:

[(1, 16129620625), (5, 3225924125), (25, 645184825), (125, 129036965), (131, 123126875), (625, 25807393), (655, 24625375), (3275, 4925075), (16375, 985015), (81875, 197003)]