1389571685

素因数分解:

$5^1\times {\mathrm{29}}^2\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 1806105600

約数和(自身を除く): 416533915

約数列:

[1, 5, 29, 47, 79, 89, 145, 235, 395, 445, 841, 1363, 2291, 2581, 3713, 4183, 4205, 6815, 7031, 11455, 12905, 18565, 20915, 35155, 39527, 66439, 74849, 107677, 121307, 197635, 203899, 330457, 332195, 374245, 538385, 606535, 1019495, 1652285, 3122633, 3517903, 5913071, 9583253, 15613165, 17589515, 29565355, 47916265, 277914337, 1389571685]

約数ペア:

[(1, 1389571685), (5, 277914337), (29, 47916265), (47, 29565355), (79, 17589515), (89, 15613165), (145, 9583253), (235, 5913071), (395, 3517903), (445, 3122633), (841, 1652285), (1363, 1019495), (2291, 606535), (2581, 538385), (3713, 374245), (4183, 332195), (4205, 330457), (6815, 203899), (7031, 197635), (11455, 121307), (12905, 107677), (18565, 74849), (20915, 66439), (35155, 39527)]