9712045

素因数分解:

$5^1\times 7^4\times {\mathrm{809}}^1$

素因数の和:842

約数の個数: 20

約数和(自身を含む): 13612860

約数和(自身を除く): 3900815

約数列:

[1, 5, 7, 35, 49, 245, 343, 809, 1715, 2401, 4045, 5663, 12005, 28315, 39641, 198205, 277487, 1387435, 1942409, 9712045]

約数ペア:

[(1, 9712045), (5, 1942409), (7, 1387435), (35, 277487), (49, 198205), (245, 39641), (343, 28315), (809, 12005), (1715, 5663), (2401, 4045)]