8268280

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{2131}}^1$

素因数の和:2239

約数の個数: 32

約数和(自身を含む): 18804240

約数和(自身を除く): 10535960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 2131, 3880, 4262, 8524, 10655, 17048, 21310, 42620, 85240, 206707, 413414, 826828, 1033535, 1653656, 2067070, 4134140, 8268280]

約数ペア:

[(1, 8268280), (2, 4134140), (4, 2067070), (5, 1653656), (8, 1033535), (10, 826828), (20, 413414), (40, 206707), (97, 85240), (194, 42620), (388, 21310), (485, 17048), (776, 10655), (970, 8524), (1940, 4262), (2131, 3880)]