18565960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1087}}^1$

素因数の和:1166

約数の個数: 64

約数和(自身を含む): 48568320

約数和(自身を除く): 30002360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 61, 70, 122, 140, 244, 280, 305, 427, 488, 610, 854, 1087, 1220, 1708, 2135, 2174, 2440, 3416, 4270, 4348, 5435, 7609, 8540, 8696, 10870, 15218, 17080, 21740, 30436, 38045, 43480, 60872, 66307, 76090, 132614, 152180, 265228, 304360, 331535, 464149, 530456, 663070, 928298, 1326140, 1856596, 2320745, 2652280, 3713192, 4641490, 9282980, 18565960]

約数ペア:

[(1, 18565960), (2, 9282980), (4, 4641490), (5, 3713192), (7, 2652280), (8, 2320745), (10, 1856596), (14, 1326140), (20, 928298), (28, 663070), (35, 530456), (40, 464149), (56, 331535), (61, 304360), (70, 265228), (122, 152180), (140, 132614), (244, 76090), (280, 66307), (305, 60872), (427, 43480), (488, 38045), (610, 30436), (854, 21740), (1087, 17080), (1220, 15218), (1708, 10870), (2135, 8696), (2174, 8540), (2440, 7609), (3416, 5435), (4270, 4348)]