20923210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{937}}^1$

素因数の和:991

約数の個数: 64

約数和(自身を含む): 48625920

約数和(自身を除く): 27702710

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 29, 35, 55, 58, 70, 77, 110, 145, 154, 203, 290, 319, 385, 406, 638, 770, 937, 1015, 1595, 1874, 2030, 2233, 3190, 4466, 4685, 6559, 9370, 10307, 11165, 13118, 20614, 22330, 27173, 32795, 51535, 54346, 65590, 72149, 103070, 135865, 144298, 190211, 271730, 298903, 360745, 380422, 597806, 721490, 951055, 1494515, 1902110, 2092321, 2989030, 4184642, 10461605, 20923210]

約数ペア:

[(1, 20923210), (2, 10461605), (5, 4184642), (7, 2989030), (10, 2092321), (11, 1902110), (14, 1494515), (22, 951055), (29, 721490), (35, 597806), (55, 380422), (58, 360745), (70, 298903), (77, 271730), (110, 190211), (145, 144298), (154, 135865), (203, 103070), (290, 72149), (319, 65590), (385, 54346), (406, 51535), (638, 32795), (770, 27173), (937, 22330), (1015, 20614), (1595, 13118), (1874, 11165), (2030, 10307), (2233, 9370), (3190, 6559), (4466, 4685)]