28648840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{65111}}^1$

素因数の和:65133

約数の個数: 32

約数和(自身を含む): 70320960

約数和(自身を除く): 41672120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 65111, 130222, 260444, 325555, 520888, 651110, 716221, 1302220, 1432442, 2604440, 2864884, 3581105, 5729768, 7162210, 14324420, 28648840]

約数ペア:

[(1, 28648840), (2, 14324420), (4, 7162210), (5, 5729768), (8, 3581105), (10, 2864884), (11, 2604440), (20, 1432442), (22, 1302220), (40, 716221), (44, 651110), (55, 520888), (88, 325555), (110, 260444), (220, 130222), (440, 65111)]