18215780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{82799}}^1$

素因数の和:82819

約数の個数: 24

約数和(自身を含む): 41731200

約数和(自身を除く): 23515420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 82799, 165598, 331196, 413995, 827990, 910789, 1655980, 1821578, 3643156, 4553945, 9107890, 18215780]

約数ペア:

[(1, 18215780), (2, 9107890), (4, 4553945), (5, 3643156), (10, 1821578), (11, 1655980), (20, 910789), (22, 827990), (44, 413995), (55, 331196), (110, 165598), (220, 82799)]