40807568

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{28657}}^1$

素因数の和:28754

約数の個数: 20

約数和(自身を含む): 79955820

約数和(自身を除く): 39148252

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 28657, 57314, 114628, 229256, 458512, 2550473, 5100946, 10201892, 20403784, 40807568]

約数ペア:

[(1, 40807568), (2, 20403784), (4, 10201892), (8, 5100946), (16, 2550473), (89, 458512), (178, 229256), (356, 114628), (712, 57314), (1424, 28657)]