20409968

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{43987}}^1$

素因数の和:44024

約数の個数: 20

約数和(自身を含む): 40908840

約数和(自身を除く): 20498872

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 43987, 87974, 175948, 351896, 703792, 1275623, 2551246, 5102492, 10204984, 20409968]

約数ペア:

[(1, 20409968), (2, 10204984), (4, 5102492), (8, 2551246), (16, 1275623), (29, 703792), (58, 351896), (116, 175948), (232, 87974), (464, 43987)]