1320238864

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{620413}}^1$

素因数の和:620447

約数の個数: 40

約数和(自身を含む): 3077253440

約数和(自身を除く): 1757014576

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 620413, 1240826, 2481652, 4342891, 4963304, 8685782, 9926608, 11787847, 17371564, 23575694, 34743128, 47151388, 69486256, 82514929, 94302776, 165029858, 188605552, 330059716, 660119432, 1320238864]

約数ペア:

[(1, 1320238864), (2, 660119432), (4, 330059716), (7, 188605552), (8, 165029858), (14, 94302776), (16, 82514929), (19, 69486256), (28, 47151388), (38, 34743128), (56, 23575694), (76, 17371564), (112, 11787847), (133, 9926608), (152, 8685782), (266, 4963304), (304, 4342891), (532, 2481652), (1064, 1240826), (2128, 620413)]