138889438180

素因数分解:

$2^2\times 5^1\times {\mathrm{177431}}^1\times {\mathrm{39139}}^1$

素因数の和:216579

約数の個数: 24

約数和(自身を含む): 291676916160

約数和(自身を除く): 152787477980

約数列:

[1, 2, 4, 5, 10, 20, 39139, 78278, 156556, 177431, 195695, 354862, 391390, 709724, 782780, 887155, 1774310, 3548620, 6944471909, 13888943818, 27777887636, 34722359545, 69444719090, 138889438180]

約数ペア:

[(1, 138889438180), (2, 69444719090), (4, 34722359545), (5, 27777887636), (10, 13888943818), (20, 6944471909), (39139, 3548620), (78278, 1774310), (156556, 887155), (177431, 782780), (195695, 709724), (354862, 391390)]