22721440

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{20287}}^1$

素因数の和:20309

約数の個数: 48

約数和(自身を含む): 61350912

約数和(自身を除く): 38629472

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 20287, 40574, 81148, 101435, 142009, 162296, 202870, 284018, 324592, 405740, 568036, 649184, 710045, 811480, 1136072, 1420090, 1622960, 2272144, 2840180, 3245920, 4544288, 5680360, 11360720, 22721440]

約数ペア:

[(1, 22721440), (2, 11360720), (4, 5680360), (5, 4544288), (7, 3245920), (8, 2840180), (10, 2272144), (14, 1622960), (16, 1420090), (20, 1136072), (28, 811480), (32, 710045), (35, 649184), (40, 568036), (56, 405740), (70, 324592), (80, 284018), (112, 202870), (140, 162296), (160, 142009), (224, 101435), (280, 81148), (560, 40574), (1120, 20287)]