81778862

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{631}}^1$

素因数の和:824

約数の個数: 32

約数和(自身を含む): 138150144

約数和(自身を除く): 56371282

約数列:

[1, 2, 11, 22, 43, 86, 137, 274, 473, 631, 946, 1262, 1507, 3014, 5891, 6941, 11782, 13882, 27133, 54266, 64801, 86447, 129602, 172894, 298463, 596926, 950917, 1901834, 3717221, 7434442, 40889431, 81778862]

約数ペア:

[(1, 81778862), (2, 40889431), (11, 7434442), (22, 3717221), (43, 1901834), (86, 950917), (137, 596926), (274, 298463), (473, 172894), (631, 129602), (946, 86447), (1262, 64801), (1507, 54266), (3014, 27133), (5891, 13882), (6941, 11782)]