31496440

素因数分解:

$2^3\times 5^1\times {\mathrm{457}}^1\times {\mathrm{1723}}^1$

素因数の和:2191

約数の個数: 32

約数和(自身を含む): 71063280

約数和(自身を除く): 39566840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 457, 914, 1723, 1828, 2285, 3446, 3656, 4570, 6892, 8615, 9140, 13784, 17230, 18280, 34460, 68920, 787411, 1574822, 3149644, 3937055, 6299288, 7874110, 15748220, 31496440]

約数ペア:

[(1, 31496440), (2, 15748220), (4, 7874110), (5, 6299288), (8, 3937055), (10, 3149644), (20, 1574822), (40, 787411), (457, 68920), (914, 34460), (1723, 18280), (1828, 17230), (2285, 13784), (3446, 9140), (3656, 8615), (4570, 6892)]