68273390

素因数分解:

$2^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{17551}}^1$

素因数の和:17947

約数の個数: 16

約数和(自身を含む): 123215040

約数和(自身を除く): 54941650

約数列:

[1, 2, 5, 10, 389, 778, 1945, 3890, 17551, 35102, 87755, 175510, 6827339, 13654678, 34136695, 68273390]

約数ペア:

[(1, 68273390), (2, 34136695), (5, 13654678), (10, 6827339), (389, 175510), (778, 87755), (1945, 35102), (3890, 17551)]