28156340

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{34337}}^1$

素因数の和:34387

約数の個数: 24

約数和(自身を含む): 60572232

約数和(自身を除く): 32415892

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 34337, 68674, 137348, 171685, 343370, 686740, 1407817, 2815634, 5631268, 7039085, 14078170, 28156340]

約数ペア:

[(1, 28156340), (2, 14078170), (4, 7039085), (5, 5631268), (10, 2815634), (20, 1407817), (41, 686740), (82, 343370), (164, 171685), (205, 137348), (410, 68674), (820, 34337)]