20744570

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{929}}^1$

素因数の和:983

約数の個数: 64

約数和(自身を含む): 48211200

約数和(自身を除く): 27466630

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, 929, 1015, 1595, 1858, 2030, 2233, 3190, 4466, 4645, 6503, 9290, 10219, 11165, 13006, 20438, 22330, 26941, 32515, 51095, 53882, 65030, 71533, 102190, 134705, 143066, 188587, 269410, 296351, 357665, 377174, 592702, 715330, 942935, 1481755, 1885870, 2074457, 2963510, 4148914, 10372285, 20744570]

約数ペア:

[(1, 20744570), (2, 10372285), (5, 4148914), (7, 2963510), (10, 2074457), (11, 1885870), (14, 1481755), (22, 942935), (29, 715330), (35, 592702), (55, 377174), (58, 357665), (70, 296351), (77, 269410), (110, 188587), (145, 143066), (154, 134705), (203, 102190), (290, 71533), (319, 65030), (385, 53882), (406, 51095), (638, 32515), (770, 26941), (929, 22330), (1015, 20438), (1595, 13006), (1858, 11165), (2030, 10219), (2233, 9290), (3190, 6503), (4466, 4645)]