8381480

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{661}}^1$

素因数の和:989

約数の個数: 32

約数和(自身を含む): 18946440

約数和(自身を除く): 10564960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 661, 1268, 1322, 1585, 2536, 2644, 3170, 3305, 5288, 6340, 6610, 12680, 13220, 26440, 209537, 419074, 838148, 1047685, 1676296, 2095370, 4190740, 8381480]

約数ペア:

[(1, 8381480), (2, 4190740), (4, 2095370), (5, 1676296), (8, 1047685), (10, 838148), (20, 419074), (40, 209537), (317, 26440), (634, 13220), (661, 12680), (1268, 6610), (1322, 6340), (1585, 5288), (2536, 3305), (2644, 3170)]