81161740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{21701}}^1$

素因数の和:21738

約数の個数: 48

約数和(自身を含む): 196880544

約数和(自身を除く): 115718804

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 21701, 43402, 86804, 108505, 217010, 238711, 368917, 434020, 477422, 737834, 954844, 1193555, 1475668, 1844585, 2387110, 3689170, 4058087, 4774220, 7378340, 8116174, 16232348, 20290435, 40580870, 81161740]

約数ペア:

[(1, 81161740), (2, 40580870), (4, 20290435), (5, 16232348), (10, 8116174), (11, 7378340), (17, 4774220), (20, 4058087), (22, 3689170), (34, 2387110), (44, 1844585), (55, 1475668), (68, 1193555), (85, 954844), (110, 737834), (170, 477422), (187, 434020), (220, 368917), (340, 238711), (374, 217010), (748, 108505), (935, 86804), (1870, 43402), (3740, 21701)]