12866990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{281}}^1$

素因数の和:548

約数の個数: 32

約数和(自身を含む): 24567840

約数和(自身を除く): 11700850

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 241, 281, 482, 562, 1205, 1405, 2410, 2810, 4579, 5339, 9158, 10678, 22895, 26695, 45790, 53390, 67721, 135442, 338605, 677210, 1286699, 2573398, 6433495, 12866990]

約数ペア:

[(1, 12866990), (2, 6433495), (5, 2573398), (10, 1286699), (19, 677210), (38, 338605), (95, 135442), (190, 67721), (241, 53390), (281, 45790), (482, 26695), (562, 22895), (1205, 10678), (1405, 9158), (2410, 5339), (2810, 4579)]