128415795

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{1759}}^1$

素因数の和:1955

約数の個数: 32

約数和(自身を含む): 213565440

約数和(自身を除く): 85149645

約数列:

[1, 3, 5, 15, 31, 93, 155, 157, 465, 471, 785, 1759, 2355, 4867, 5277, 8795, 14601, 24335, 26385, 54529, 73005, 163587, 272645, 276163, 817935, 828489, 1380815, 4142445, 8561053, 25683159, 42805265, 128415795]

約数ペア:

[(1, 128415795), (3, 42805265), (5, 25683159), (15, 8561053), (31, 4142445), (93, 1380815), (155, 828489), (157, 817935), (465, 276163), (471, 272645), (785, 163587), (1759, 73005), (2355, 54529), (4867, 26385), (5277, 24335), (8795, 14601)]