27985720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{787}}^1$

素因数の和:932

約数の個数: 64

約数和(自身を含む): 72622080

約数和(自身を除く): 44636360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 127, 140, 254, 280, 508, 635, 787, 889, 1016, 1270, 1574, 1778, 2540, 3148, 3556, 3935, 4445, 5080, 5509, 6296, 7112, 7870, 8890, 11018, 15740, 17780, 22036, 27545, 31480, 35560, 44072, 55090, 99949, 110180, 199898, 220360, 399796, 499745, 699643, 799592, 999490, 1399286, 1998980, 2798572, 3498215, 3997960, 5597144, 6996430, 13992860, 27985720]

約数ペア:

[(1, 27985720), (2, 13992860), (4, 6996430), (5, 5597144), (7, 3997960), (8, 3498215), (10, 2798572), (14, 1998980), (20, 1399286), (28, 999490), (35, 799592), (40, 699643), (56, 499745), (70, 399796), (127, 220360), (140, 199898), (254, 110180), (280, 99949), (508, 55090), (635, 44072), (787, 35560), (889, 31480), (1016, 27545), (1270, 22036), (1574, 17780), (1778, 15740), (2540, 11018), (3148, 8890), (3556, 7870), (3935, 7112), (4445, 6296), (5080, 5509)]