21122080

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{18859}}^1$

素因数の和:18881

約数の個数: 48

約数和(自身を含む): 57032640

約数和(自身を除く): 35910560

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, 18859, 37718, 75436, 94295, 132013, 150872, 188590, 264026, 301744, 377180, 528052, 603488, 660065, 754360, 1056104, 1320130, 1508720, 2112208, 2640260, 3017440, 4224416, 5280520, 10561040, 21122080]

約数ペア:

[(1, 21122080), (2, 10561040), (4, 5280520), (5, 4224416), (7, 3017440), (8, 2640260), (10, 2112208), (14, 1508720), (16, 1320130), (20, 1056104), (28, 754360), (32, 660065), (35, 603488), (40, 528052), (56, 377180), (70, 301744), (80, 264026), (112, 188590), (140, 150872), (160, 132013), (224, 94295), (280, 75436), (560, 37718), (1120, 18859)]