51366680

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{4051}}^1$

素因数の和:4379

約数の個数: 32

約数和(自身を含む): 115968240

約数和(自身を除く): 64601560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 2536, 3170, 4051, 6340, 8102, 12680, 16204, 20255, 32408, 40510, 81020, 162040, 1284167, 2568334, 5136668, 6420835, 10273336, 12841670, 25683340, 51366680]

約数ペア:

[(1, 51366680), (2, 25683340), (4, 12841670), (5, 10273336), (8, 6420835), (10, 5136668), (20, 2568334), (40, 1284167), (317, 162040), (634, 81020), (1268, 40510), (1585, 32408), (2536, 20255), (3170, 16204), (4051, 12680), (6340, 8102)]