81885320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{186103}}^1$

素因数の和:186125

約数の個数: 32

約数和(自身を含む): 200992320

約数和(自身を除く): 119107000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 186103, 372206, 744412, 930515, 1488824, 1861030, 2047133, 3722060, 4094266, 7444120, 8188532, 10235665, 16377064, 20471330, 40942660, 81885320]

約数ペア:

[(1, 81885320), (2, 40942660), (4, 20471330), (5, 16377064), (8, 10235665), (10, 8188532), (11, 7444120), (20, 4094266), (22, 3722060), (40, 2047133), (44, 1861030), (55, 1488824), (88, 930515), (110, 744412), (220, 372206), (440, 186103)]