27880255

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1097}}^1$

素因数の和:1155

約数の個数: 32

約数和(自身を含む): 39844224

約数和(自身を除く): 11963969

約数列:

[1, 5, 13, 17, 23, 65, 85, 115, 221, 299, 391, 1097, 1105, 1495, 1955, 5083, 5485, 14261, 18649, 25231, 25415, 71305, 93245, 126155, 242437, 328003, 428927, 1212185, 1640015, 2144635, 5576051, 27880255]

約数ペア:

[(1, 27880255), (5, 5576051), (13, 2144635), (17, 1640015), (23, 1212185), (65, 428927), (85, 328003), (115, 242437), (221, 126155), (299, 93245), (391, 71305), (1097, 25415), (1105, 25231), (1495, 18649), (1955, 14261), (5083, 5485)]