256833400

素因数分解:

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

素因数の和:4384

約数の個数: 48

約数和(自身を含む): 599169240

約数和(自身を除く): 342335840

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 317, 634, 1268, 1585, 2536, 3170, 4051, 6340, 7925, 8102, 12680, 15850, 16204, 20255, 31700, 32408, 40510, 63400, 81020, 101275, 162040, 202550, 405100, 810200, 1284167, 2568334, 5136668, 6420835, 10273336, 12841670, 25683340, 32104175, 51366680, 64208350, 128416700, 256833400]

約数ペア:

[(1, 256833400), (2, 128416700), (4, 64208350), (5, 51366680), (8, 32104175), (10, 25683340), (20, 12841670), (25, 10273336), (40, 6420835), (50, 5136668), (100, 2568334), (200, 1284167), (317, 810200), (634, 405100), (1268, 202550), (1585, 162040), (2536, 101275), (3170, 81020), (4051, 63400), (6340, 40510), (7925, 32408), (8102, 31700), (12680, 20255), (15850, 16204)]