7982920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{18143}}^1$

素因数の和:18165

約数の個数: 32

約数和(自身を含む): 19595520

約数和(自身を除く): 11612600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 18143, 36286, 72572, 90715, 145144, 181430, 199573, 362860, 399146, 725720, 798292, 997865, 1596584, 1995730, 3991460, 7982920]

約数ペア:

[(1, 7982920), (2, 3991460), (4, 1995730), (5, 1596584), (8, 997865), (10, 798292), (11, 725720), (20, 399146), (22, 362860), (40, 199573), (44, 181430), (55, 145144), (88, 90715), (110, 72572), (220, 36286), (440, 18143)]