20155400

素因数分解:

$2^3\times 5^2\times {\mathrm{179}}^1\times {\mathrm{563}}^1$

素因数の和:758

約数の個数: 48

約数和(自身を含む): 47206800

約数和(自身を除く): 27051400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 179, 200, 358, 563, 716, 895, 1126, 1432, 1790, 2252, 2815, 3580, 4475, 4504, 5630, 7160, 8950, 11260, 14075, 17900, 22520, 28150, 35800, 56300, 100777, 112600, 201554, 403108, 503885, 806216, 1007770, 2015540, 2519425, 4031080, 5038850, 10077700, 20155400]

約数ペア:

[(1, 20155400), (2, 10077700), (4, 5038850), (5, 4031080), (8, 2519425), (10, 2015540), (20, 1007770), (25, 806216), (40, 503885), (50, 403108), (100, 201554), (179, 112600), (200, 100777), (358, 56300), (563, 35800), (716, 28150), (895, 22520), (1126, 17900), (1432, 14075), (1790, 11260), (2252, 8950), (2815, 7160), (3580, 5630), (4475, 4504)]