80355440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{719}}^1$

素因数の和:870

約数の個数: 80

約数和(自身を含む): 205701120

約数和(自身を除く): 125345680

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 127, 176, 220, 254, 440, 508, 635, 719, 880, 1016, 1270, 1397, 1438, 2032, 2540, 2794, 2876, 3595, 5080, 5588, 5752, 6985, 7190, 7909, 10160, 11176, 11504, 13970, 14380, 15818, 22352, 27940, 28760, 31636, 39545, 55880, 57520, 63272, 79090, 91313, 111760, 126544, 158180, 182626, 316360, 365252, 456565, 632720, 730504, 913130, 1004443, 1461008, 1826260, 2008886, 3652520, 4017772, 5022215, 7305040, 8035544, 10044430, 16071088, 20088860, 40177720, 80355440]

約数ペア:

[(1, 80355440), (2, 40177720), (4, 20088860), (5, 16071088), (8, 10044430), (10, 8035544), (11, 7305040), (16, 5022215), (20, 4017772), (22, 3652520), (40, 2008886), (44, 1826260), (55, 1461008), (80, 1004443), (88, 913130), (110, 730504), (127, 632720), (176, 456565), (220, 365252), (254, 316360), (440, 182626), (508, 158180), (635, 126544), (719, 111760), (880, 91313), (1016, 79090), (1270, 63272), (1397, 57520), (1438, 55880), (2032, 39545), (2540, 31636), (2794, 28760), (2876, 27940), (3595, 22352), (5080, 15818), (5588, 14380), (5752, 13970), (6985, 11504), (7190, 11176), (7909, 10160)]