381081440

素因数分解:

$2^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{21851}}^1$

素因数の和:21975

約数の個数: 48

約数和(自身を含む): 908606160

約数和(自身を除く): 527524720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 218, 436, 545, 872, 1090, 1744, 2180, 3488, 4360, 8720, 17440, 21851, 43702, 87404, 109255, 174808, 218510, 349616, 437020, 699232, 874040, 1748080, 2381759, 3496160, 4763518, 9527036, 11908795, 19054072, 23817590, 38108144, 47635180, 76216288, 95270360, 190540720, 381081440]

約数ペア:

[(1, 381081440), (2, 190540720), (4, 95270360), (5, 76216288), (8, 47635180), (10, 38108144), (16, 23817590), (20, 19054072), (32, 11908795), (40, 9527036), (80, 4763518), (109, 3496160), (160, 2381759), (218, 1748080), (436, 874040), (545, 699232), (872, 437020), (1090, 349616), (1744, 218510), (2180, 174808), (3488, 109255), (4360, 87404), (8720, 43702), (17440, 21851)]