678479984

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{465989}}^1$

素因数の和:466017

約数の個数: 40

約数和(自身を含む): 1617917280

約数和(自身を除く): 939437296

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 465989, 931978, 1863956, 3261923, 3727912, 6057857, 6523846, 7455824, 12115714, 13047692, 24231428, 26095384, 42404999, 48462856, 52190768, 84809998, 96925712, 169619996, 339239992, 678479984]

約数ペア:

[(1, 678479984), (2, 339239992), (4, 169619996), (7, 96925712), (8, 84809998), (13, 52190768), (14, 48462856), (16, 42404999), (26, 26095384), (28, 24231428), (52, 13047692), (56, 12115714), (91, 7455824), (104, 6523846), (112, 6057857), (182, 3727912), (208, 3261923), (364, 1863956), (728, 931978), (1456, 465989)]