20088860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{719}}^1$

素因数の和:866

約数の個数: 48

約数和(自身を含む): 46448640

約数和(自身を除く): 26359780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 127, 220, 254, 508, 635, 719, 1270, 1397, 1438, 2540, 2794, 2876, 3595, 5588, 6985, 7190, 7909, 13970, 14380, 15818, 27940, 31636, 39545, 79090, 91313, 158180, 182626, 365252, 456565, 913130, 1004443, 1826260, 2008886, 4017772, 5022215, 10044430, 20088860]

約数ペア:

[(1, 20088860), (2, 10044430), (4, 5022215), (5, 4017772), (10, 2008886), (11, 1826260), (20, 1004443), (22, 913130), (44, 456565), (55, 365252), (110, 182626), (127, 158180), (220, 91313), (254, 79090), (508, 39545), (635, 31636), (719, 27940), (1270, 15818), (1397, 14380), (1438, 13970), (2540, 7909), (2794, 7190), (2876, 6985), (3595, 5588)]