81805922

素因数分解:

$2^1\times {\mathrm{11}}^3\times {\mathrm{79}}^1\times {\mathrm{389}}^1$

素因数の和:503

約数の個数: 32

約数和(自身を含む): 137030400

約数和(自身を除く): 55224478

約数列:

[1, 2, 11, 22, 79, 121, 158, 242, 389, 778, 869, 1331, 1738, 2662, 4279, 8558, 9559, 19118, 30731, 47069, 61462, 94138, 105149, 210298, 338041, 517759, 676082, 1035518, 3718451, 7436902, 40902961, 81805922]

約数ペア:

[(1, 81805922), (2, 40902961), (11, 7436902), (22, 3718451), (79, 1035518), (121, 676082), (158, 517759), (242, 338041), (389, 210298), (778, 105149), (869, 94138), (1331, 61462), (1738, 47069), (2662, 30731), (4279, 19118), (8558, 9559)]