18102920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41143}}^1$

素因数の和:41165

約数の個数: 32

約数和(自身を含む): 44435520

約数和(自身を除く): 26332600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 41143, 82286, 164572, 205715, 329144, 411430, 452573, 822860, 905146, 1645720, 1810292, 2262865, 3620584, 4525730, 9051460, 18102920]

約数ペア:

[(1, 18102920), (2, 9051460), (4, 4525730), (5, 3620584), (8, 2262865), (10, 1810292), (11, 1645720), (20, 905146), (22, 822860), (40, 452573), (44, 411430), (55, 329144), (88, 205715), (110, 164572), (220, 82286), (440, 41143)]