55390280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{125887}}^1$

素因数の和:125909

約数の個数: 32

約数和(自身を含む): 135959040

約数和(自身を除く): 80568760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 125887, 251774, 503548, 629435, 1007096, 1258870, 1384757, 2517740, 2769514, 5035480, 5539028, 6923785, 11078056, 13847570, 27695140, 55390280]

約数ペア:

[(1, 55390280), (2, 27695140), (4, 13847570), (5, 11078056), (8, 6923785), (10, 5539028), (11, 5035480), (20, 2769514), (22, 2517740), (40, 1384757), (44, 1258870), (55, 1007096), (88, 629435), (110, 503548), (220, 251774), (440, 125887)]