640620296

素因数分解:

$2^3\times {\mathrm{347}}^1\times {\mathrm{230771}}^1$

素因数の和:231124

約数の個数: 16

約数和(自身を含む): 1204629840

約数和(自身を除く): 564009544

約数列:

[1, 2, 4, 8, 347, 694, 1388, 2776, 230771, 461542, 923084, 1846168, 80077537, 160155074, 320310148, 640620296]

約数ペア:

[(1, 640620296), (2, 320310148), (4, 160155074), (8, 80077537), (347, 1846168), (694, 923084), (1388, 461542), (2776, 230771)]