31139980

素因数分解:

$2^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{3407}}^1$

素因数の和:3873

約数の個数: 24

約数和(自身を含む): 65556288

約数和(自身を除く): 34416308

約数列:

[1, 2, 4, 5, 10, 20, 457, 914, 1828, 2285, 3407, 4570, 6814, 9140, 13628, 17035, 34070, 68140, 1556999, 3113998, 6227996, 7784995, 15569990, 31139980]

約数ペア:

[(1, 31139980), (2, 15569990), (4, 7784995), (5, 6227996), (10, 3113998), (20, 1556999), (457, 68140), (914, 34070), (1828, 17035), (2285, 13628), (3407, 9140), (4570, 6814)]