1278889480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2906567}}^1$

素因数の和:2906589

約数の個数: 32

約数和(自身を含む): 3139093440

約数和(自身を除く): 1860203960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 2906567, 5813134, 11626268, 14532835, 23252536, 29065670, 31972237, 58131340, 63944474, 116262680, 127888948, 159861185, 255777896, 319722370, 639444740, 1278889480]

約数ペア:

[(1, 1278889480), (2, 639444740), (4, 319722370), (5, 255777896), (8, 159861185), (10, 127888948), (11, 116262680), (20, 63944474), (22, 58131340), (40, 31972237), (44, 29065670), (55, 23252536), (88, 14532835), (110, 11626268), (220, 5813134), (440, 2906567)]