12978625

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{9439}}^1$

素因数の和:9465

約数の個数: 16

約数和(自身を含む): 17671680

約数和(自身を除く): 4693055

約数列:

[1, 5, 11, 25, 55, 125, 275, 1375, 9439, 47195, 103829, 235975, 519145, 1179875, 2595725, 12978625]

約数ペア:

[(1, 12978625), (5, 2595725), (11, 1179875), (25, 519145), (55, 235975), (125, 103829), (275, 47195), (1375, 9439)]