22720720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{25819}}^1$

素因数の和:25843

約数の個数: 40

約数和(自身を含む): 57630240

約数和(自身を除く): 34909520

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 25819, 51638, 103276, 129095, 206552, 258190, 284009, 413104, 516380, 568018, 1032760, 1136036, 1420045, 2065520, 2272072, 2840090, 4544144, 5680180, 11360360, 22720720]

約数ペア:

[(1, 22720720), (2, 11360360), (4, 5680180), (5, 4544144), (8, 2840090), (10, 2272072), (11, 2065520), (16, 1420045), (20, 1136036), (22, 1032760), (40, 568018), (44, 516380), (55, 413104), (80, 284009), (88, 258190), (110, 206552), (176, 129095), (220, 103276), (440, 51638), (880, 25819)]