13578125

素因数分解:

$5^6\times {\mathrm{11}}^1\times {\mathrm{79}}^1$

素因数の和:120

約数の個数: 28

約数和(自身を含む): 18749760

約数和(自身を除く): 5171635

約数列:

[1, 5, 11, 25, 55, 79, 125, 275, 395, 625, 869, 1375, 1975, 3125, 4345, 6875, 9875, 15625, 21725, 34375, 49375, 108625, 171875, 246875, 543125, 1234375, 2715625, 13578125]

約数ペア:

[(1, 13578125), (5, 2715625), (11, 1234375), (25, 543125), (55, 246875), (79, 171875), (125, 108625), (275, 49375), (395, 34375), (625, 21725), (869, 15625), (1375, 9875), (1975, 6875), (3125, 4345)]