20689848145

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{103457}}^1$

素因数の和:103569

約数の個数: 32

約数和(自身を含む): 27173864448

約数和(自身を除く): 6484016303

約数列:

[1, 5, 23, 37, 47, 115, 185, 235, 851, 1081, 1739, 4255, 5405, 8695, 39997, 103457, 199985, 517285, 2379511, 3827909, 4862479, 11897555, 19139545, 24312395, 88041907, 111837017, 179911723, 440209535, 559185085, 899558615, 4137969629, 20689848145]

約数ペア:

[(1, 20689848145), (5, 4137969629), (23, 899558615), (37, 559185085), (47, 440209535), (115, 179911723), (185, 111837017), (235, 88041907), (851, 24312395), (1081, 19139545), (1739, 11897555), (4255, 4862479), (5405, 3827909), (8695, 2379511), (39997, 517285), (103457, 199985)]