25720280

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{13681}}^1$

素因数の和:13739

約数の個数: 32

約数和(自身を含む): 59106240

約数和(自身を除く): 33385960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 13681, 27362, 54724, 68405, 109448, 136810, 273620, 547240, 643007, 1286014, 2572028, 3215035, 5144056, 6430070, 12860140, 25720280]

約数ペア:

[(1, 25720280), (2, 12860140), (4, 6430070), (5, 5144056), (8, 3215035), (10, 2572028), (20, 1286014), (40, 643007), (47, 547240), (94, 273620), (188, 136810), (235, 109448), (376, 68405), (470, 54724), (940, 27362), (1880, 13681)]