145080280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{84349}}^1$

素因数の和:84403

約数の個数: 32

約数和(自身を含む): 334026000

約数和(自身を除く): 188945720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 84349, 168698, 337396, 421745, 674792, 843490, 1686980, 3373960, 3627007, 7254014, 14508028, 18135035, 29016056, 36270070, 72540140, 145080280]

約数ペア:

[(1, 145080280), (2, 72540140), (4, 36270070), (5, 29016056), (8, 18135035), (10, 14508028), (20, 7254014), (40, 3627007), (43, 3373960), (86, 1686980), (172, 843490), (215, 674792), (344, 421745), (430, 337396), (860, 168698), (1720, 84349)]