20790403888

素因数分解:

$2^4\times {\mathrm{149}}^1\times {\mathrm{8720807}}^1$

素因数の和:8720964

約数の個数: 20

約数和(自身を含む): 40551757200

約数和(自身を除く): 19761353312

約数列:

[1, 2, 4, 8, 16, 149, 298, 596, 1192, 2384, 8720807, 17441614, 34883228, 69766456, 139532912, 1299400243, 2598800486, 5197600972, 10395201944, 20790403888]

約数ペア:

[(1, 20790403888), (2, 10395201944), (4, 5197600972), (8, 2598800486), (16, 1299400243), (149, 139532912), (298, 69766456), (596, 34883228), (1192, 17441614), (2384, 8720807)]