19811770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{463}}^1$

素因数の和:870

約数の個数: 32

約数和(自身を含む): 39087360

約数和(自身を除く): 19275590

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 389, 463, 778, 926, 1945, 2315, 3890, 4279, 4630, 5093, 8558, 10186, 21395, 25465, 42790, 50930, 180107, 360214, 900535, 1801070, 1981177, 3962354, 9905885, 19811770]

約数ペア:

[(1, 19811770), (2, 9905885), (5, 3962354), (10, 1981177), (11, 1801070), (22, 900535), (55, 360214), (110, 180107), (389, 50930), (463, 42790), (778, 25465), (926, 21395), (1945, 10186), (2315, 8558), (3890, 5093), (4279, 4630)]