30781818

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{541}}^1$

素因数の和:687

約数の個数: 48

約数和(自身を含む): 69755400

約数和(自身を除く): 38973582

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 87, 109, 174, 218, 261, 327, 522, 541, 654, 981, 1082, 1623, 1962, 3161, 3246, 4869, 6322, 9483, 9738, 15689, 18966, 28449, 31378, 47067, 56898, 58969, 94134, 117938, 141201, 176907, 282402, 353814, 530721, 1061442, 1710101, 3420202, 5130303, 10260606, 15390909, 30781818]

約数ペア:

[(1, 30781818), (2, 15390909), (3, 10260606), (6, 5130303), (9, 3420202), (18, 1710101), (29, 1061442), (58, 530721), (87, 353814), (109, 282402), (174, 176907), (218, 141201), (261, 117938), (327, 94134), (522, 58969), (541, 56898), (654, 47067), (981, 31378), (1082, 28449), (1623, 18966), (1962, 15689), (3161, 9738), (3246, 9483), (4869, 6322)]