1217829985

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^2\times {\mathrm{2543}}^1$

素因数の和:2709

約数の個数: 24

約数和(自身を含む): 1560896640

約数和(自身を除く): 343066655

約数列:

[1, 5, 19, 71, 95, 355, 1349, 2543, 5041, 6745, 12715, 25205, 48317, 95779, 180553, 241585, 478895, 902765, 3430507, 12819263, 17152535, 64096315, 243565997, 1217829985]

約数ペア:

[(1, 1217829985), (5, 243565997), (19, 64096315), (71, 17152535), (95, 12819263), (355, 3430507), (1349, 902765), (2543, 478895), (5041, 241585), (6745, 180553), (12715, 95779), (25205, 48317)]