8624660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1$

素因数の和:416

約数の個数: 48

約数和(自身を含む): 19958400

約数和(自身を除く): 11333740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 197, 199, 220, 394, 398, 788, 796, 985, 995, 1970, 1990, 2167, 2189, 3940, 3980, 4334, 4378, 8668, 8756, 10835, 10945, 21670, 21890, 39203, 43340, 43780, 78406, 156812, 196015, 392030, 431233, 784060, 862466, 1724932, 2156165, 4312330, 8624660]

約数ペア:

[(1, 8624660), (2, 4312330), (4, 2156165), (5, 1724932), (10, 862466), (11, 784060), (20, 431233), (22, 392030), (44, 196015), (55, 156812), (110, 78406), (197, 43780), (199, 43340), (220, 39203), (394, 21890), (398, 21670), (788, 10945), (796, 10835), (985, 8756), (995, 8668), (1970, 4378), (1990, 4334), (2167, 3980), (2189, 3940)]