142648240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{254729}}^1$

素因数の和:254749

約数の個数: 40

約数和(自身を含む): 379038240

約数和(自身を除く): 236390000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 254729, 509458, 1018916, 1273645, 1783103, 2037832, 2547290, 3566206, 4075664, 5094580, 7132412, 8915515, 10189160, 14264824, 17831030, 20378320, 28529648, 35662060, 71324120, 142648240]

約数ペア:

[(1, 142648240), (2, 71324120), (4, 35662060), (5, 28529648), (7, 20378320), (8, 17831030), (10, 14264824), (14, 10189160), (16, 8915515), (20, 7132412), (28, 5094580), (35, 4075664), (40, 3566206), (56, 2547290), (70, 2037832), (80, 1783103), (112, 1273645), (140, 1018916), (280, 509458), (560, 254729)]