71654680

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{5651}}^1$

素因数の和:5979

約数の個数: 32

約数和(自身を含む): 161760240

約数和(自身を除く): 90105560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 2536, 3170, 5651, 6340, 11302, 12680, 22604, 28255, 45208, 56510, 113020, 226040, 1791367, 3582734, 7165468, 8956835, 14330936, 17913670, 35827340, 71654680]

約数ペア:

[(1, 71654680), (2, 35827340), (4, 17913670), (5, 14330936), (8, 8956835), (10, 7165468), (20, 3582734), (40, 1791367), (317, 226040), (634, 113020), (1268, 56510), (1585, 45208), (2536, 28255), (3170, 22604), (5651, 12680), (6340, 11302)]