18130720

素因数分解:

$2^5\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2411}}^1$

素因数の和:2473

約数の個数: 48

約数和(自身を含む): 43763328

約数和(自身を除く): 25632608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 80, 94, 160, 188, 235, 376, 470, 752, 940, 1504, 1880, 2411, 3760, 4822, 7520, 9644, 12055, 19288, 24110, 38576, 48220, 77152, 96440, 113317, 192880, 226634, 385760, 453268, 566585, 906536, 1133170, 1813072, 2266340, 3626144, 4532680, 9065360, 18130720]

約数ペア:

[(1, 18130720), (2, 9065360), (4, 4532680), (5, 3626144), (8, 2266340), (10, 1813072), (16, 1133170), (20, 906536), (32, 566585), (40, 453268), (47, 385760), (80, 226634), (94, 192880), (160, 113317), (188, 96440), (235, 77152), (376, 48220), (470, 38576), (752, 24110), (940, 19288), (1504, 12055), (1880, 9644), (2411, 7520), (3760, 4822)]