25221680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{28661}}^1$

素因数の和:28685

約数の個数: 40

約数和(自身を含む): 63973584

約数和(自身を除く): 38751904

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 28661, 57322, 114644, 143305, 229288, 286610, 315271, 458576, 573220, 630542, 1146440, 1261084, 1576355, 2292880, 2522168, 3152710, 5044336, 6305420, 12610840, 25221680]

約数ペア:

[(1, 25221680), (2, 12610840), (4, 6305420), (5, 5044336), (8, 3152710), (10, 2522168), (11, 2292880), (16, 1576355), (20, 1261084), (22, 1146440), (40, 630542), (44, 573220), (55, 458576), (80, 315271), (88, 286610), (110, 229288), (176, 143305), (220, 114644), (440, 57322), (880, 28661)]