20166172

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{4909}}^1$

素因数の和:5005

約数の個数: 24

約数和(自身を含む): 38494400

約数和(自身を除く): 18328228

約数列:

[1, 2, 4, 13, 26, 52, 79, 158, 316, 1027, 2054, 4108, 4909, 9818, 19636, 63817, 127634, 255268, 387811, 775622, 1551244, 5041543, 10083086, 20166172]

約数ペア:

[(1, 20166172), (2, 10083086), (4, 5041543), (13, 1551244), (26, 775622), (52, 387811), (79, 255268), (158, 127634), (316, 63817), (1027, 19636), (2054, 9818), (4108, 4909)]