20660144

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{67961}}^1$

素因数の和:67988

約数の個数: 20

約数和(自身を含む): 42136440

約数和(自身を除く): 21476296

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 67961, 135922, 271844, 543688, 1087376, 1291259, 2582518, 5165036, 10330072, 20660144]

約数ペア:

[(1, 20660144), (2, 10330072), (4, 5165036), (8, 2582518), (16, 1291259), (19, 1087376), (38, 543688), (76, 271844), (152, 135922), (304, 67961)]