80640140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{576001}}^1$

素因数の和:576017

約数の個数: 24

約数和(自身を含む): 193536672

約数和(自身を除く): 112896532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 576001, 1152002, 2304004, 2880005, 4032007, 5760010, 8064014, 11520020, 16128028, 20160035, 40320070, 80640140]

約数ペア:

[(1, 80640140), (2, 40320070), (4, 20160035), (5, 16128028), (7, 11520020), (10, 8064014), (14, 5760010), (20, 4032007), (28, 2880005), (35, 2304004), (70, 1152002), (140, 576001)]