9938620

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 21732480

約数和(自身を除く): 11793860

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 97, 109, 188, 194, 218, 235, 388, 436, 470, 485, 545, 940, 970, 1090, 1940, 2180, 4559, 5123, 9118, 10246, 10573, 18236, 20492, 21146, 22795, 25615, 42292, 45590, 51230, 52865, 91180, 102460, 105730, 211460, 496931, 993862, 1987724, 2484655, 4969310, 9938620]

約数ペア:

[(1, 9938620), (2, 4969310), (4, 2484655), (5, 1987724), (10, 993862), (20, 496931), (47, 211460), (94, 105730), (97, 102460), (109, 91180), (188, 52865), (194, 51230), (218, 45590), (235, 42292), (388, 25615), (436, 22795), (470, 21146), (485, 20492), (545, 18236), (940, 10573), (970, 10246), (1090, 9118), (1940, 5123), (2180, 4559)]