642931856

素因数分解:

$2^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{197947}}^1$

素因数の和:197991

約数の個数: 40

約数和(自身を含む): 1472733120

約数和(自身を除く): 829801264

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 56, 58, 112, 116, 203, 232, 406, 464, 812, 1624, 3248, 197947, 395894, 791788, 1385629, 1583576, 2771258, 3167152, 5542516, 5740463, 11085032, 11480926, 22170064, 22961852, 40183241, 45923704, 80366482, 91847408, 160732964, 321465928, 642931856]

約数ペア:

[(1, 642931856), (2, 321465928), (4, 160732964), (7, 91847408), (8, 80366482), (14, 45923704), (16, 40183241), (28, 22961852), (29, 22170064), (56, 11480926), (58, 11085032), (112, 5740463), (116, 5542516), (203, 3167152), (232, 2771258), (406, 1583576), (464, 1385629), (812, 791788), (1624, 395894), (3248, 197947)]