39444280

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{20981}}^1$

素因数の和:21039

約数の個数: 32

約数和(自身を含む): 90642240

約数和(自身を除く): 51197960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 20981, 41962, 83924, 104905, 167848, 209810, 419620, 839240, 986107, 1972214, 3944428, 4930535, 7888856, 9861070, 19722140, 39444280]

約数ペア:

[(1, 39444280), (2, 19722140), (4, 9861070), (5, 7888856), (8, 4930535), (10, 3944428), (20, 1972214), (40, 986107), (47, 839240), (94, 419620), (188, 209810), (235, 167848), (376, 104905), (470, 83924), (940, 41962), (1880, 20981)]