161490620

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{49537}}^1$

素因数の和:49709

約数の個数: 24

約数和(自身を含む): 341217744

約数和(自身を除く): 179727124

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 49537, 99074, 198148, 247685, 495370, 990740, 8074531, 16149062, 32298124, 40372655, 80745310, 161490620]

約数ペア:

[(1, 161490620), (2, 80745310), (4, 40372655), (5, 32298124), (10, 16149062), (20, 8074531), (163, 990740), (326, 495370), (652, 247685), (815, 198148), (1630, 99074), (3260, 49537)]