12489375

素因数分解:

$3^1\times 5^4\times {\mathrm{6661}}^1$

素因数の和:6684

約数の個数: 20

約数和(自身を含む): 20812088

約数和(自身を除く): 8322713

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 625, 1875, 6661, 19983, 33305, 99915, 166525, 499575, 832625, 2497875, 4163125, 12489375]

約数ペア:

[(1, 12489375), (3, 4163125), (5, 2497875), (15, 832625), (25, 499575), (75, 166525), (125, 99915), (375, 33305), (625, 19983), (1875, 6661)]