12156980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{55259}}^1$

素因数の和:55279

約数の個数: 24

約数和(自身を含む): 27851040

約数和(自身を除く): 15694060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 55259, 110518, 221036, 276295, 552590, 607849, 1105180, 1215698, 2431396, 3039245, 6078490, 12156980]

約数ペア:

[(1, 12156980), (2, 6078490), (4, 3039245), (5, 2431396), (10, 1215698), (11, 1105180), (20, 607849), (22, 552590), (44, 276295), (55, 221036), (110, 110518), (220, 55259)]