81139856

素因数分解:

$2^4\times 7^1\times {\mathrm{191}}^1\times {\mathrm{3793}}^1$

素因数の和:3999

約数の個数: 40

約数和(自身を含む): 180655104

約数和(自身を除く): 99515248

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 191, 382, 764, 1337, 1528, 2674, 3056, 3793, 5348, 7586, 10696, 15172, 21392, 26551, 30344, 53102, 60688, 106204, 212408, 424816, 724463, 1448926, 2897852, 5071241, 5795704, 10142482, 11591408, 20284964, 40569928, 81139856]

約数ペア:

[(1, 81139856), (2, 40569928), (4, 20284964), (7, 11591408), (8, 10142482), (14, 5795704), (16, 5071241), (28, 2897852), (56, 1448926), (112, 724463), (191, 424816), (382, 212408), (764, 106204), (1337, 60688), (1528, 53102), (2674, 30344), (3056, 26551), (3793, 21392), (5348, 15172), (7586, 10696)]