55687280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{63281}}^1$

素因数の和:63305

約数の個数: 40

約数和(自身を含む): 141245424

約数和(自身を除く): 85558144

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 63281, 126562, 253124, 316405, 506248, 632810, 696091, 1012496, 1265620, 1392182, 2531240, 2784364, 3480455, 5062480, 5568728, 6960910, 11137456, 13921820, 27843640, 55687280]

約数ペア:

[(1, 55687280), (2, 27843640), (4, 13921820), (5, 11137456), (8, 6960910), (10, 5568728), (11, 5062480), (16, 3480455), (20, 2784364), (22, 2531240), (40, 1392182), (44, 1265620), (55, 1012496), (80, 696091), (88, 632810), (110, 506248), (176, 316405), (220, 253124), (440, 126562), (880, 63281)]