678960542

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{127}}^1\times {\mathrm{15817}}^1$

素因数の和:15972

約数の個数: 24

約数和(自身を含む): 1111562496

約数和(自身を除く): 432601954

約数列:

[1, 2, 13, 26, 127, 169, 254, 338, 1651, 3302, 15817, 21463, 31634, 42926, 205621, 411242, 2008759, 2673073, 4017518, 5346146, 26113867, 52227734, 339480271, 678960542]

約数ペア:

[(1, 678960542), (2, 339480271), (13, 52227734), (26, 26113867), (127, 5346146), (169, 4017518), (254, 2673073), (338, 2008759), (1651, 411242), (3302, 205621), (15817, 42926), (21463, 31634)]