20746660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{8573}}^1$

素因数の和:8604

約数の個数: 36

約数和(自身を含む): 47894364

約数和(自身を除く): 27147704

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 8573, 17146, 34292, 42865, 85730, 94303, 171460, 188606, 377212, 471515, 943030, 1037333, 1886060, 2074666, 4149332, 5186665, 10373330, 20746660]

約数ペア:

[(1, 20746660), (2, 10373330), (4, 5186665), (5, 4149332), (10, 2074666), (11, 1886060), (20, 1037333), (22, 943030), (44, 471515), (55, 377212), (110, 188606), (121, 171460), (220, 94303), (242, 85730), (484, 42865), (605, 34292), (1210, 17146), (2420, 8573)]