28878680

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{15361}}^1$

素因数の和:15419

約数の個数: 32

約数和(自身を含む): 66363840

約数和(自身を除く): 37485160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 15361, 30722, 61444, 76805, 122888, 153610, 307220, 614440, 721967, 1443934, 2887868, 3609835, 5775736, 7219670, 14439340, 28878680]

約数ペア:

[(1, 28878680), (2, 14439340), (4, 7219670), (5, 5775736), (8, 3609835), (10, 2887868), (20, 1443934), (40, 721967), (47, 614440), (94, 307220), (188, 153610), (235, 122888), (376, 76805), (470, 61444), (940, 30722), (1880, 15361)]