725344240

素因数分解:

$2^4\times 5^1\times {\mathrm{9066803}}^1$

素因数の和:9066816

約数の個数: 20

約数和(自身を含む): 1686425544

約数和(自身を除く): 961081304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 9066803, 18133606, 36267212, 45334015, 72534424, 90668030, 145068848, 181336060, 362672120, 725344240]

約数ペア:

[(1, 725344240), (2, 362672120), (4, 181336060), (5, 145068848), (8, 90668030), (10, 72534424), (16, 45334015), (20, 36267212), (40, 18133606), (80, 9066803)]