28027400

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{3259}}^1$

素因数の和:3318

約数の個数: 48

約数和(自身を含む): 66699600

約数和(自身を除く): 38672200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 172, 200, 215, 344, 430, 860, 1075, 1720, 2150, 3259, 4300, 6518, 8600, 13036, 16295, 26072, 32590, 65180, 81475, 130360, 140137, 162950, 280274, 325900, 560548, 651800, 700685, 1121096, 1401370, 2802740, 3503425, 5605480, 7006850, 14013700, 28027400]

約数ペア:

[(1, 28027400), (2, 14013700), (4, 7006850), (5, 5605480), (8, 3503425), (10, 2802740), (20, 1401370), (25, 1121096), (40, 700685), (43, 651800), (50, 560548), (86, 325900), (100, 280274), (172, 162950), (200, 140137), (215, 130360), (344, 81475), (430, 65180), (860, 32590), (1075, 26072), (1720, 16295), (2150, 13036), (3259, 8600), (4300, 6518)]