31876120

素因数分解:

$2^3\times 5^1\times {\mathrm{499}}^1\times {\mathrm{1597}}^1$

素因数の和:2107

約数の個数: 32

約数和(自身を含む): 71910000

約数和(自身を除く): 40033880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 499, 998, 1597, 1996, 2495, 3194, 3992, 4990, 6388, 7985, 9980, 12776, 15970, 19960, 31940, 63880, 796903, 1593806, 3187612, 3984515, 6375224, 7969030, 15938060, 31876120]

約数ペア:

[(1, 31876120), (2, 15938060), (4, 7969030), (5, 6375224), (8, 3984515), (10, 3187612), (20, 1593806), (40, 796903), (499, 63880), (998, 31940), (1597, 19960), (1996, 15970), (2495, 12776), (3194, 9980), (3992, 7985), (4990, 6388)]