38366440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{521}}^1$

素因数の和:802

約数の個数: 64

約数和(自身を含む): 99221760

約数和(自身を除く): 60855320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 263, 280, 521, 526, 1042, 1052, 1315, 1841, 2084, 2104, 2605, 2630, 3647, 3682, 4168, 5210, 5260, 7294, 7364, 9205, 10420, 10520, 14588, 14728, 18235, 18410, 20840, 29176, 36470, 36820, 72940, 73640, 137023, 145880, 274046, 548092, 685115, 959161, 1096184, 1370230, 1918322, 2740460, 3836644, 4795805, 5480920, 7673288, 9591610, 19183220, 38366440]

約数ペア:

[(1, 38366440), (2, 19183220), (4, 9591610), (5, 7673288), (7, 5480920), (8, 4795805), (10, 3836644), (14, 2740460), (20, 1918322), (28, 1370230), (35, 1096184), (40, 959161), (56, 685115), (70, 548092), (140, 274046), (263, 145880), (280, 137023), (521, 73640), (526, 72940), (1042, 36820), (1052, 36470), (1315, 29176), (1841, 20840), (2084, 18410), (2104, 18235), (2605, 14728), (2630, 14588), (3647, 10520), (3682, 10420), (4168, 9205), (5210, 7364), (5260, 7294)]