19905424

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{151}}^1$

素因数の和:284

約数の個数: 80

約数和(自身を含む): 48854016

約数和(自身を除く): 28948592

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 107, 112, 151, 154, 176, 214, 302, 308, 428, 604, 616, 749, 856, 1057, 1177, 1208, 1232, 1498, 1661, 1712, 2114, 2354, 2416, 2996, 3322, 4228, 4708, 5992, 6644, 8239, 8456, 9416, 11627, 11984, 13288, 16157, 16478, 16912, 18832, 23254, 26576, 32314, 32956, 46508, 64628, 65912, 93016, 113099, 129256, 131824, 177727, 186032, 226198, 258512, 355454, 452396, 710908, 904792, 1244089, 1421816, 1809584, 2488178, 2843632, 4976356, 9952712, 19905424]

約数ペア:

[(1, 19905424), (2, 9952712), (4, 4976356), (7, 2843632), (8, 2488178), (11, 1809584), (14, 1421816), (16, 1244089), (22, 904792), (28, 710908), (44, 452396), (56, 355454), (77, 258512), (88, 226198), (107, 186032), (112, 177727), (151, 131824), (154, 129256), (176, 113099), (214, 93016), (302, 65912), (308, 64628), (428, 46508), (604, 32956), (616, 32314), (749, 26576), (856, 23254), (1057, 18832), (1177, 16912), (1208, 16478), (1232, 16157), (1498, 13288), (1661, 11984), (1712, 11627), (2114, 9416), (2354, 8456), (2416, 8239), (2996, 6644), (3322, 5992), (4228, 4708)]