71559980

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{25741}}^1$

素因数の和:25889

約数の個数: 24

約数和(自身を含む): 151362960

約数和(自身を除く): 79802980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 25741, 51482, 102964, 128705, 257410, 514820, 3577999, 7155998, 14311996, 17889995, 35779990, 71559980]

約数ペア:

[(1, 71559980), (2, 35779990), (4, 17889995), (5, 14311996), (10, 7155998), (20, 3577999), (139, 514820), (278, 257410), (556, 128705), (695, 102964), (1390, 51482), (2780, 25741)]