12820995

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{439}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 24710400

約数和(自身を除く): 11889405

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 59, 99, 165, 177, 295, 439, 495, 531, 649, 885, 1317, 1947, 2195, 2655, 3245, 3951, 4829, 5841, 6585, 9735, 14487, 19755, 24145, 25901, 29205, 43461, 72435, 77703, 129505, 217305, 233109, 284911, 388515, 854733, 1165545, 1424555, 2564199, 4273665, 12820995]

約数ペア:

[(1, 12820995), (3, 4273665), (5, 2564199), (9, 1424555), (11, 1165545), (15, 854733), (33, 388515), (45, 284911), (55, 233109), (59, 217305), (99, 129505), (165, 77703), (177, 72435), (295, 43461), (439, 29205), (495, 25901), (531, 24145), (649, 19755), (885, 14487), (1317, 9735), (1947, 6585), (2195, 5841), (2655, 4829), (3245, 3951)]