257156930

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{196303}}^1$

素因数の和:196441

約数の個数: 16

約数和(自身を含む): 466418304

約数和(自身を除く): 209261374

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 196303, 392606, 981515, 1963030, 25715693, 51431386, 128578465, 257156930]

約数ペア:

[(1, 257156930), (2, 128578465), (5, 51431386), (10, 25715693), (131, 1963030), (262, 981515), (655, 392606), (1310, 196303)]