285156680

素因数分解:

$2^3\times 5^1\times {\mathrm{2251}}^1\times {\mathrm{3167}}^1$

素因数の和:5429

約数の個数: 32

約数和(自身を含む): 642090240

約数和(自身を除く): 356933560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2251, 3167, 4502, 6334, 9004, 11255, 12668, 15835, 18008, 22510, 25336, 31670, 45020, 63340, 90040, 126680, 7128917, 14257834, 28515668, 35644585, 57031336, 71289170, 142578340, 285156680]

約数ペア:

[(1, 285156680), (2, 142578340), (4, 71289170), (5, 57031336), (8, 35644585), (10, 28515668), (20, 14257834), (40, 7128917), (2251, 126680), (3167, 90040), (4502, 63340), (6334, 45020), (9004, 31670), (11255, 25336), (12668, 22510), (15835, 18008)]