639952894

素因数分解:

$2^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{626177}}^1$

素因数の和:626259

約数の個数: 16

約数和(自身を含む): 1112092128

約数和(自身を除く): 472139234

約数列:

[1, 2, 7, 14, 73, 146, 511, 1022, 626177, 1252354, 4383239, 8766478, 45710921, 91421842, 319976447, 639952894]

約数ペア:

[(1, 639952894), (2, 319976447), (7, 91421842), (14, 45710921), (73, 8766478), (146, 4383239), (511, 1252354), (1022, 626177)]