138878828

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{613}}^1$

素因数の和:918

約数の個数: 48

約数和(自身を含む): 280573440

約数和(自身を除く): 141694612

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 271, 418, 542, 613, 836, 1084, 1226, 2452, 2981, 5149, 5962, 6743, 10298, 11647, 11924, 13486, 20596, 23294, 26972, 46588, 56639, 113278, 128117, 166123, 226556, 256234, 332246, 512468, 664492, 1827353, 3156337, 3654706, 6312674, 7309412, 12625348, 34719707, 69439414, 138878828]

約数ペア:

[(1, 138878828), (2, 69439414), (4, 34719707), (11, 12625348), (19, 7309412), (22, 6312674), (38, 3654706), (44, 3156337), (76, 1827353), (209, 664492), (271, 512468), (418, 332246), (542, 256234), (613, 226556), (836, 166123), (1084, 128117), (1226, 113278), (2452, 56639), (2981, 46588), (5149, 26972), (5962, 23294), (6743, 20596), (10298, 13486), (11647, 11924)]