28401800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{20287}}^1$

素因数の和:20310

約数の個数: 48

約数和(自身を含む): 75471360

約数和(自身を除く): 47069560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 175, 200, 280, 350, 700, 1400, 20287, 40574, 81148, 101435, 142009, 162296, 202870, 284018, 405740, 507175, 568036, 710045, 811480, 1014350, 1136072, 1420090, 2028700, 2840180, 3550225, 4057400, 5680360, 7100450, 14200900, 28401800]

約数ペア:

[(1, 28401800), (2, 14200900), (4, 7100450), (5, 5680360), (7, 4057400), (8, 3550225), (10, 2840180), (14, 2028700), (20, 1420090), (25, 1136072), (28, 1014350), (35, 811480), (40, 710045), (50, 568036), (56, 507175), (70, 405740), (100, 284018), (140, 202870), (175, 162296), (200, 142009), (280, 101435), (350, 81148), (700, 40574), (1400, 20287)]