128216080

素因数分解:

$2^4\times 5^1\times {\mathrm{223}}^1\times {\mathrm{7187}}^1$

素因数の和:7423

約数の個数: 40

約数和(自身を含む): 299480832

約数和(自身を除く): 171264752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 223, 446, 892, 1115, 1784, 2230, 3568, 4460, 7187, 8920, 14374, 17840, 28748, 35935, 57496, 71870, 114992, 143740, 287480, 574960, 1602701, 3205402, 6410804, 8013505, 12821608, 16027010, 25643216, 32054020, 64108040, 128216080]

約数ペア:

[(1, 128216080), (2, 64108040), (4, 32054020), (5, 25643216), (8, 16027010), (10, 12821608), (16, 8013505), (20, 6410804), (40, 3205402), (80, 1602701), (223, 574960), (446, 287480), (892, 143740), (1115, 114992), (1784, 71870), (2230, 57496), (3568, 35935), (4460, 28748), (7187, 17840), (8920, 14374)]