90942820

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1\times {\mathrm{337}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 194882688

約数和(自身を除く): 103939868

約数列:

[1, 2, 4, 5, 10, 20, 103, 131, 206, 262, 337, 412, 515, 524, 655, 674, 1030, 1310, 1348, 1685, 2060, 2620, 3370, 6740, 13493, 26986, 34711, 44147, 53972, 67465, 69422, 88294, 134930, 138844, 173555, 176588, 220735, 269860, 347110, 441470, 694220, 882940, 4547141, 9094282, 18188564, 22735705, 45471410, 90942820]

約数ペア:

[(1, 90942820), (2, 45471410), (4, 22735705), (5, 18188564), (10, 9094282), (20, 4547141), (103, 882940), (131, 694220), (206, 441470), (262, 347110), (337, 269860), (412, 220735), (515, 176588), (524, 173555), (655, 138844), (674, 134930), (1030, 88294), (1310, 69422), (1348, 67465), (1685, 53972), (2060, 44147), (2620, 34711), (3370, 26986), (6740, 13493)]