168412660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{647741}}^1$

素因数の和:647763

約数の個数: 24

約数和(自身を含む): 380872296

約数和(自身を除く): 212459636

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 647741, 1295482, 2590964, 3238705, 6477410, 8420633, 12954820, 16841266, 33682532, 42103165, 84206330, 168412660]

約数ペア:

[(1, 168412660), (2, 84206330), (4, 42103165), (5, 33682532), (10, 16841266), (13, 12954820), (20, 8420633), (26, 6477410), (52, 3238705), (65, 2590964), (130, 1295482), (260, 647741)]