20178070108

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{431}}^1\times {\mathrm{523}}^1$

素因数の和:1127

約数の個数: 96

約数和(自身を含む): 42593402880

約数和(自身を除く): 22415332772

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 139, 161, 278, 322, 431, 523, 556, 644, 862, 973, 1046, 1724, 1946, 2092, 3017, 3197, 3661, 3892, 6034, 6394, 7322, 9913, 12029, 12068, 12788, 14644, 19826, 22379, 24058, 39652, 44758, 48116, 59909, 69391, 72697, 84203, 89516, 119818, 138782, 145394, 168406, 225413, 239636, 277564, 290788, 336812, 419363, 450826, 508879, 838726, 901652, 1017758, 1377907, 1577891, 1672031, 1677452, 2035516, 2755814, 3155782, 3344062, 5184499, 5511628, 6311564, 6688124, 9645349, 10368998, 11704217, 19290698, 20737996, 23408434, 31332407, 36291493, 38581396, 46816868, 62664814, 72582986, 125329628, 145165972, 219326849, 438653698, 720645361, 877307396, 1441290722, 2882581444, 5044517527, 10089035054, 20178070108]

約数ペア:

[(1, 20178070108), (2, 10089035054), (4, 5044517527), (7, 2882581444), (14, 1441290722), (23, 877307396), (28, 720645361), (46, 438653698), (92, 219326849), (139, 145165972), (161, 125329628), (278, 72582986), (322, 62664814), (431, 46816868), (523, 38581396), (556, 36291493), (644, 31332407), (862, 23408434), (973, 20737996), (1046, 19290698), (1724, 11704217), (1946, 10368998), (2092, 9645349), (3017, 6688124), (3197, 6311564), (3661, 5511628), (3892, 5184499), (6034, 3344062), (6394, 3155782), (7322, 2755814), (9913, 2035516), (12029, 1677452), (12068, 1672031), (12788, 1577891), (14644, 1377907), (19826, 1017758), (22379, 901652), (24058, 838726), (39652, 508879), (44758, 450826), (48116, 419363), (59909, 336812), (69391, 290788), (72697, 277564), (84203, 239636), (89516, 225413), (119818, 168406), (138782, 145394)]