80625

素因数分解:

$3^1\times 5^4\times {\mathrm{43}}^1$

素因数の和:66

約数の個数: 20

約数和(自身を含む): 137456

約数和(自身を除く): 56831

約数列:

[1, 3, 5, 15, 25, 43, 75, 125, 129, 215, 375, 625, 645, 1075, 1875, 3225, 5375, 16125, 26875, 80625]

約数ペア:

[(1, 80625), (3, 26875), (5, 16125), (15, 5375), (25, 3225), (43, 1875), (75, 1075), (125, 645), (129, 625), (215, 375)]