66986380

素因数分解:

$2^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{12451}}^1$

素因数の和:12729

約数の個数: 24

約数和(自身を含む): 141205680

約数和(自身を除く): 74219300

約数列:

[1, 2, 4, 5, 10, 20, 269, 538, 1076, 1345, 2690, 5380, 12451, 24902, 49804, 62255, 124510, 249020, 3349319, 6698638, 13397276, 16746595, 33493190, 66986380]

約数ペア:

[(1, 66986380), (2, 33493190), (4, 16746595), (5, 13397276), (10, 6698638), (20, 3349319), (269, 249020), (538, 124510), (1076, 62255), (1345, 49804), (2690, 24902), (5380, 12451)]