1280821685

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1\times {\mathrm{277}}^1$

素因数の和:558

約数の個数: 64

約数和(自身を含む): 1883105280

約数和(自身を除く): 602283595

約数列:

[1, 5, 11, 13, 29, 55, 65, 143, 145, 223, 277, 319, 377, 715, 1115, 1385, 1595, 1885, 2453, 2899, 3047, 3601, 4147, 6467, 8033, 12265, 14495, 15235, 18005, 20735, 31889, 32335, 39611, 40165, 61771, 71137, 84071, 88363, 104429, 159445, 198055, 308855, 355685, 420355, 441815, 522145, 679481, 803023, 924781, 1148719, 1791359, 3397405, 4015115, 4623905, 5743595, 8833253, 8956795, 19704949, 23287667, 44166265, 98524745, 116438335, 256164337, 1280821685]

約数ペア:

[(1, 1280821685), (5, 256164337), (11, 116438335), (13, 98524745), (29, 44166265), (55, 23287667), (65, 19704949), (143, 8956795), (145, 8833253), (223, 5743595), (277, 4623905), (319, 4015115), (377, 3397405), (715, 1791359), (1115, 1148719), (1385, 924781), (1595, 803023), (1885, 679481), (2453, 522145), (2899, 441815), (3047, 420355), (3601, 355685), (4147, 308855), (6467, 198055), (8033, 159445), (12265, 104429), (14495, 88363), (15235, 84071), (18005, 71137), (20735, 61771), (31889, 40165), (32335, 39611)]