1391722880

素因数分解:

$2^7\times 5^1\times {\mathrm{647}}^1\times {\mathrm{3361}}^1$

素因数の和:4027

約数の個数: 64

約数和(自身を含む): 3333221280

約数和(自身を除く): 1941498400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 647, 1294, 2588, 3235, 3361, 5176, 6470, 6722, 10352, 12940, 13444, 16805, 20704, 25880, 26888, 33610, 41408, 51760, 53776, 67220, 82816, 103520, 107552, 134440, 207040, 215104, 268880, 414080, 430208, 537760, 1075520, 2151040, 2174567, 4349134, 8698268, 10872835, 17396536, 21745670, 34793072, 43491340, 69586144, 86982680, 139172288, 173965360, 278344576, 347930720, 695861440, 1391722880]

約数ペア:

[(1, 1391722880), (2, 695861440), (4, 347930720), (5, 278344576), (8, 173965360), (10, 139172288), (16, 86982680), (20, 69586144), (32, 43491340), (40, 34793072), (64, 21745670), (80, 17396536), (128, 10872835), (160, 8698268), (320, 4349134), (640, 2174567), (647, 2151040), (1294, 1075520), (2588, 537760), (3235, 430208), (3361, 414080), (5176, 268880), (6470, 215104), (6722, 207040), (10352, 134440), (12940, 107552), (13444, 103520), (16805, 82816), (20704, 67220), (25880, 53776), (26888, 51760), (33610, 41408)]