22280080

素因数分解:

$2^4\times 5^1\times {\mathrm{278501}}^1$

素因数の和:278514

約数の個数: 20

約数和(自身を含む): 51801372

約数和(自身を除く): 29521292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 278501, 557002, 1114004, 1392505, 2228008, 2785010, 4456016, 5570020, 11140040, 22280080]

約数ペア:

[(1, 22280080), (2, 11140040), (4, 5570020), (5, 4456016), (8, 2785010), (10, 2228008), (16, 1392505), (20, 1114004), (40, 557002), (80, 278501)]