2557456670

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1952257}}^1$

素因数の和:1952395

約数の個数: 16

約数和(自身を含む): 4638565008

約数和(自身を除く): 2081108338

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 1952257, 3904514, 9761285, 19522570, 255745667, 511491334, 1278728335, 2557456670]

約数ペア:

[(1, 2557456670), (2, 1278728335), (5, 511491334), (10, 255745667), (131, 19522570), (262, 9761285), (655, 3904514), (1310, 1952257)]