31195760

素因数分解:

$2^4\times 5^1\times {\mathrm{389947}}^1$

素因数の和:389960

約数の個数: 20

約数和(自身を含む): 72530328

約数和(自身を除く): 41334568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389947, 779894, 1559788, 1949735, 3119576, 3899470, 6239152, 7798940, 15597880, 31195760]

約数ペア:

[(1, 31195760), (2, 15597880), (4, 7798940), (5, 6239152), (8, 3899470), (10, 3119576), (16, 1949735), (20, 1559788), (40, 779894), (80, 389947)]