640322928

素因数分解:

$2^4\times 3^3\times 7^1\times {\mathrm{211747}}^1$

素因数の和:211771

約数の個数: 80

約数和(自身を含む): 2100540160

約数和(自身を除く): 1460217232

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 36, 42, 48, 54, 56, 63, 72, 84, 108, 112, 126, 144, 168, 189, 216, 252, 336, 378, 432, 504, 756, 1008, 1512, 3024, 211747, 423494, 635241, 846988, 1270482, 1482229, 1693976, 1905723, 2540964, 2964458, 3387952, 3811446, 4446687, 5081928, 5717169, 5928916, 7622892, 8893374, 10163856, 11434338, 11857832, 13340061, 15245784, 17786748, 22868676, 23715664, 26680122, 30491568, 35573496, 40020183, 45737352, 53360244, 71146992, 80040366, 91474704, 106720488, 160080732, 213440976, 320161464, 640322928]

約数ペア:

[(1, 640322928), (2, 320161464), (3, 213440976), (4, 160080732), (6, 106720488), (7, 91474704), (8, 80040366), (9, 71146992), (12, 53360244), (14, 45737352), (16, 40020183), (18, 35573496), (21, 30491568), (24, 26680122), (27, 23715664), (28, 22868676), (36, 17786748), (42, 15245784), (48, 13340061), (54, 11857832), (56, 11434338), (63, 10163856), (72, 8893374), (84, 7622892), (108, 5928916), (112, 5717169), (126, 5081928), (144, 4446687), (168, 3811446), (189, 3387952), (216, 2964458), (252, 2540964), (336, 1905723), (378, 1693976), (432, 1482229), (504, 1270482), (756, 846988), (1008, 635241), (1512, 423494), (3024, 211747)]