640881046

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{3821}}^1\times {\mathrm{6451}}^1$

素因数の和:10287

約数の個数: 16

約数和(自身を含む): 1035700848

約数和(自身を除く): 394819802

約数列:

[1, 2, 13, 26, 3821, 6451, 7642, 12902, 49673, 83863, 99346, 167726, 24649271, 49298542, 320440523, 640881046]

約数ペア:

[(1, 640881046), (2, 320440523), (13, 49298542), (26, 24649271), (3821, 167726), (6451, 99346), (7642, 83863), (12902, 49673)]