15520280

素因数分解:

$2^3\times 5^1\times {\mathrm{587}}^1\times {\mathrm{661}}^1$

素因数の和:1259

約数の個数: 32

約数和(自身を含む): 35033040

約数和(自身を除く): 19512760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 587, 661, 1174, 1322, 2348, 2644, 2935, 3305, 4696, 5288, 5870, 6610, 11740, 13220, 23480, 26440, 388007, 776014, 1552028, 1940035, 3104056, 3880070, 7760140, 15520280]

約数ペア:

[(1, 15520280), (2, 7760140), (4, 3880070), (5, 3104056), (8, 1940035), (10, 1552028), (20, 776014), (40, 388007), (587, 26440), (661, 23480), (1174, 13220), (1322, 11740), (2348, 6610), (2644, 5870), (2935, 5288), (3305, 4696)]