20038040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{45541}}^1$

素因数の和:45563

約数の個数: 32

約数和(自身を含む): 49185360

約数和(自身を除く): 29147320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 45541, 91082, 182164, 227705, 364328, 455410, 500951, 910820, 1001902, 1821640, 2003804, 2504755, 4007608, 5009510, 10019020, 20038040]

約数ペア:

[(1, 20038040), (2, 10019020), (4, 5009510), (5, 4007608), (8, 2504755), (10, 2003804), (11, 1821640), (20, 1001902), (22, 910820), (40, 500951), (44, 455410), (55, 364328), (88, 227705), (110, 182164), (220, 91082), (440, 45541)]