28264280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{64237}}^1$

素因数の和:64259

約数の個数: 32

約数和(自身を含む): 69377040

約数和(自身を除く): 41112760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 64237, 128474, 256948, 321185, 513896, 642370, 706607, 1284740, 1413214, 2569480, 2826428, 3533035, 5652856, 7066070, 14132140, 28264280]

約数ペア:

[(1, 28264280), (2, 14132140), (4, 7066070), (5, 5652856), (8, 3533035), (10, 2826428), (11, 2569480), (20, 1413214), (22, 1284740), (40, 706607), (44, 642370), (55, 513896), (88, 321185), (110, 256948), (220, 128474), (440, 64237)]