2155340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 5037984

約数和(自身を除く): 2882644

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 97, 101, 110, 194, 202, 220, 388, 404, 485, 505, 970, 1010, 1067, 1111, 1940, 2020, 2134, 2222, 4268, 4444, 5335, 5555, 9797, 10670, 11110, 19594, 21340, 22220, 39188, 48985, 97970, 107767, 195940, 215534, 431068, 538835, 1077670, 2155340]

約数ペア:

[(1, 2155340), (2, 1077670), (4, 538835), (5, 431068), (10, 215534), (11, 195940), (20, 107767), (22, 97970), (44, 48985), (55, 39188), (97, 22220), (101, 21340), (110, 19594), (194, 11110), (202, 10670), (220, 9797), (388, 5555), (404, 5335), (485, 4444), (505, 4268), (970, 2222), (1010, 2134), (1067, 2020), (1111, 1940)]