18807140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{85487}}^1$

素因数の和:85507

約数の個数: 24

約数和(自身を含む): 43085952

約数和(自身を除く): 24278812

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 85487, 170974, 341948, 427435, 854870, 940357, 1709740, 1880714, 3761428, 4701785, 9403570, 18807140]

約数ペア:

[(1, 18807140), (2, 9403570), (4, 4701785), (5, 3761428), (10, 1880714), (11, 1709740), (20, 940357), (22, 854870), (44, 427435), (55, 341948), (110, 170974), (220, 85487)]