71658020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{511843}}^1$

素因数の和:511859

約数の個数: 24

約数和(自身を含む): 171979584

約数和(自身を除く): 100321564

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 511843, 1023686, 2047372, 2559215, 3582901, 5118430, 7165802, 10236860, 14331604, 17914505, 35829010, 71658020]

約数ペア:

[(1, 71658020), (2, 35829010), (4, 17914505), (5, 14331604), (7, 10236860), (10, 7165802), (14, 5118430), (20, 3582901), (28, 2559215), (35, 2047372), (70, 1023686), (140, 511843)]