31420940

素因数分解:

$2^2\times 5^1\times {\mathrm{727}}^1\times {\mathrm{2161}}^1$

素因数の和:2897

約数の個数: 24

約数和(自身を含む): 66105312

約数和(自身を除く): 34684372

約数列:

[1, 2, 4, 5, 10, 20, 727, 1454, 2161, 2908, 3635, 4322, 7270, 8644, 10805, 14540, 21610, 43220, 1571047, 3142094, 6284188, 7855235, 15710470, 31420940]

約数ペア:

[(1, 31420940), (2, 15710470), (4, 7855235), (5, 6284188), (10, 3142094), (20, 1571047), (727, 43220), (1454, 21610), (2161, 14540), (2908, 10805), (3635, 8644), (4322, 7270)]