81135625

素因数分解:

$5^4\times {\mathrm{43}}^1\times {\mathrm{3019}}^1$

素因数の和:3082

約数の個数: 20

約数和(自身を含む): 103779280

約数和(自身を除く): 22643655

約数列:

[1, 5, 25, 43, 125, 215, 625, 1075, 3019, 5375, 15095, 26875, 75475, 129817, 377375, 649085, 1886875, 3245425, 16227125, 81135625]

約数ペア:

[(1, 81135625), (5, 16227125), (25, 3245425), (43, 1886875), (125, 649085), (215, 377375), (625, 129817), (1075, 75475), (3019, 26875), (5375, 15095)]