138405956

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:229

約数の個数: 72

約数和(自身を含む): 281827224

約数和(自身を除く): 143421268

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 73, 76, 101, 146, 202, 247, 292, 361, 404, 494, 722, 949, 988, 1313, 1387, 1444, 1898, 1919, 2626, 2774, 3796, 3838, 4693, 5252, 5548, 7373, 7676, 9386, 14746, 18031, 18772, 24947, 26353, 29492, 36062, 36461, 49894, 52706, 72124, 72922, 95849, 99788, 105412, 140087, 145844, 191698, 280174, 342589, 383396, 473993, 560348, 685178, 947986, 1370356, 1821131, 1895972, 2661653, 3642262, 5323306, 7284524, 10646612, 34601489, 69202978, 138405956]

約数ペア:

[(1, 138405956), (2, 69202978), (4, 34601489), (13, 10646612), (19, 7284524), (26, 5323306), (38, 3642262), (52, 2661653), (73, 1895972), (76, 1821131), (101, 1370356), (146, 947986), (202, 685178), (247, 560348), (292, 473993), (361, 383396), (404, 342589), (494, 280174), (722, 191698), (949, 145844), (988, 140087), (1313, 105412), (1387, 99788), (1444, 95849), (1898, 72922), (1919, 72124), (2626, 52706), (2774, 49894), (3796, 36461), (3838, 36062), (4693, 29492), (5252, 26353), (5548, 24947), (7373, 18772), (7676, 18031), (9386, 14746)]