12156940

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{4373}}^1$

素因数の和:4521

約数の個数: 24

約数和(自身を含む): 25719120

約数和(自身を除く): 13562180

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 4373, 8746, 17492, 21865, 43730, 87460, 607847, 1215694, 2431388, 3039235, 6078470, 12156940]

約数ペア:

[(1, 12156940), (2, 6078470), (4, 3039235), (5, 2431388), (10, 1215694), (20, 607847), (139, 87460), (278, 43730), (556, 21865), (695, 17492), (1390, 8746), (2780, 4373)]