2811884020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{12781291}}^1$

素因数の和:12781311

約数の個数: 24

約数和(自身を含む): 6441771168

約数和(自身を除く): 3629887148

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 12781291, 25562582, 51125164, 63906455, 127812910, 140594201, 255625820, 281188402, 562376804, 702971005, 1405942010, 2811884020]

約数ペア:

[(1, 2811884020), (2, 1405942010), (4, 702971005), (5, 562376804), (10, 281188402), (11, 255625820), (20, 140594201), (22, 127812910), (44, 63906455), (55, 51125164), (110, 25562582), (220, 12781291)]