9880115

素因数分解:

$5^1\times 7^4\times {\mathrm{823}}^1$

素因数の和:856

約数の個数: 20

約数和(自身を含む): 13848144

約数和(自身を除く): 3968029

約数列:

[1, 5, 7, 35, 49, 245, 343, 823, 1715, 2401, 4115, 5761, 12005, 28805, 40327, 201635, 282289, 1411445, 1976023, 9880115]

約数ペア:

[(1, 9880115), (5, 1976023), (7, 1411445), (35, 282289), (49, 201635), (245, 40327), (343, 28805), (823, 12005), (1715, 5761), (2401, 4115)]