12715745

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:150

約数の個数: 48

約数和(自身を含む): 19502208

約数和(自身を除く): 6786463

約数列:

[1, 5, 7, 17, 35, 43, 49, 71, 85, 119, 215, 245, 301, 355, 497, 595, 731, 833, 1207, 1505, 2107, 2485, 3053, 3479, 3655, 4165, 5117, 6035, 8449, 10535, 15265, 17395, 21371, 25585, 35819, 42245, 51901, 59143, 106855, 149597, 179095, 259505, 295715, 363307, 747985, 1816535, 2543149, 12715745]

約数ペア:

[(1, 12715745), (5, 2543149), (7, 1816535), (17, 747985), (35, 363307), (43, 295715), (49, 259505), (71, 179095), (85, 149597), (119, 106855), (215, 59143), (245, 51901), (301, 42245), (355, 35819), (497, 25585), (595, 21371), (731, 17395), (833, 15265), (1207, 10535), (1505, 8449), (2107, 6035), (2485, 5117), (3053, 4165), (3479, 3655)]