20080412

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{15737}}^1$

素因数の和:15781

約数の個数: 24

約数和(自身を含む): 39659760

約数和(自身を除く): 19579348

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 116, 319, 638, 1276, 15737, 31474, 62948, 173107, 346214, 456373, 692428, 912746, 1825492, 5020103, 10040206, 20080412]

約数ペア:

[(1, 20080412), (2, 10040206), (4, 5020103), (11, 1825492), (22, 912746), (29, 692428), (44, 456373), (58, 346214), (116, 173107), (319, 62948), (638, 31474), (1276, 15737)]