157631440

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18077}}^1$

素因数の和:18199

約数の個数: 40

約数和(自身を含む): 369875880

約数和(自身を除く): 212244440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 18077, 36154, 72308, 90385, 144616, 180770, 289232, 361540, 723080, 1446160, 1970393, 3940786, 7881572, 9851965, 15763144, 19703930, 31526288, 39407860, 78815720, 157631440]

約数ペア:

[(1, 157631440), (2, 78815720), (4, 39407860), (5, 31526288), (8, 19703930), (10, 15763144), (16, 9851965), (20, 7881572), (40, 3940786), (80, 1970393), (109, 1446160), (218, 723080), (436, 361540), (545, 289232), (872, 180770), (1090, 144616), (1744, 90385), (2180, 72308), (4360, 36154), (8720, 18077)]