204920757

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2\times {\mathrm{43}}^1$

素因数の和:159

約数の個数: 72

約数和(自身を含む): 340797600

約数和(自身を除く): 135876843

約数列:

[1, 3, 9, 19, 29, 31, 43, 57, 87, 93, 129, 171, 261, 279, 387, 551, 589, 817, 899, 961, 1247, 1333, 1653, 1767, 2451, 2697, 2883, 3741, 3999, 4959, 5301, 7353, 8091, 8649, 11223, 11997, 17081, 18259, 23693, 25327, 27869, 38657, 41323, 51243, 54777, 71079, 75981, 83607, 115971, 123969, 153729, 164331, 213237, 227943, 250821, 347913, 371907, 529511, 734483, 785137, 1198367, 1588533, 2203449, 2355411, 3595101, 4765599, 6610347, 7066233, 10785303, 22768973, 68306919, 204920757]

約数ペア:

[(1, 204920757), (3, 68306919), (9, 22768973), (19, 10785303), (29, 7066233), (31, 6610347), (43, 4765599), (57, 3595101), (87, 2355411), (93, 2203449), (129, 1588533), (171, 1198367), (261, 785137), (279, 734483), (387, 529511), (551, 371907), (589, 347913), (817, 250821), (899, 227943), (961, 213237), (1247, 164331), (1333, 153729), (1653, 123969), (1767, 115971), (2451, 83607), (2697, 75981), (2883, 71079), (3741, 54777), (3999, 51243), (4959, 41323), (5301, 38657), (7353, 27869), (8091, 25327), (8649, 23693), (11223, 18259), (11997, 17081)]