2155279940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{208441}}^1$

素因数の和:208508

約数の個数: 48

約数和(自身を含む): 5042628864

約数和(自身を除く): 2887348924

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 94, 110, 188, 220, 235, 470, 517, 940, 1034, 2068, 2585, 5170, 10340, 208441, 416882, 833764, 1042205, 2084410, 2292851, 4168820, 4585702, 9171404, 9796727, 11464255, 19593454, 22928510, 39186908, 45857020, 48983635, 97967270, 107763997, 195934540, 215527994, 431055988, 538819985, 1077639970, 2155279940]

約数ペア:

[(1, 2155279940), (2, 1077639970), (4, 538819985), (5, 431055988), (10, 215527994), (11, 195934540), (20, 107763997), (22, 97967270), (44, 48983635), (47, 45857020), (55, 39186908), (94, 22928510), (110, 19593454), (188, 11464255), (220, 9796727), (235, 9171404), (470, 4585702), (517, 4168820), (940, 2292851), (1034, 2084410), (2068, 1042205), (2585, 833764), (5170, 416882), (10340, 208441)]