80876660

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{887}}^1$

素因数の和:1040

約数の個数: 48

約数和(自身を含む): 175440384

約数和(自身を除く): 94563724

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 97, 188, 194, 235, 388, 470, 485, 887, 940, 970, 1774, 1940, 3548, 4435, 4559, 8870, 9118, 17740, 18236, 22795, 41689, 45590, 83378, 86039, 91180, 166756, 172078, 208445, 344156, 416890, 430195, 833780, 860390, 1720780, 4043833, 8087666, 16175332, 20219165, 40438330, 80876660]

約数ペア:

[(1, 80876660), (2, 40438330), (4, 20219165), (5, 16175332), (10, 8087666), (20, 4043833), (47, 1720780), (94, 860390), (97, 833780), (188, 430195), (194, 416890), (235, 344156), (388, 208445), (470, 172078), (485, 166756), (887, 91180), (940, 86039), (970, 83378), (1774, 45590), (1940, 41689), (3548, 22795), (4435, 18236), (4559, 17740), (8870, 9118)]