72840740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{520291}}^1$

素因数の和:520307

約数の個数: 24

約数和(自身を含む): 174818112

約数和(自身を除く): 101977372

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 520291, 1040582, 2081164, 2601455, 3642037, 5202910, 7284074, 10405820, 14568148, 18210185, 36420370, 72840740]

約数ペア:

[(1, 72840740), (2, 36420370), (4, 18210185), (5, 14568148), (7, 10405820), (10, 7284074), (14, 5202910), (20, 3642037), (28, 2601455), (35, 2081164), (70, 1040582), (140, 520291)]