18875560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{42899}}^1$

素因数の和:42921

約数の個数: 32

約数和(自身を含む): 46332000

約数和(自身を除く): 27456440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 42899, 85798, 171596, 214495, 343192, 428990, 471889, 857980, 943778, 1715960, 1887556, 2359445, 3775112, 4718890, 9437780, 18875560]

約数ペア:

[(1, 18875560), (2, 9437780), (4, 4718890), (5, 3775112), (8, 2359445), (10, 1887556), (11, 1715960), (20, 943778), (22, 857980), (40, 471889), (44, 428990), (55, 343192), (88, 214495), (110, 171596), (220, 85798), (440, 42899)]