81579358

素因数分解:

$2^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{233}}^1\times {\mathrm{281}}^1$

素因数の和:612

約数の個数: 32

約数和(自身を含む): 142534080

約数和(自身を除く): 60954722

約数列:

[1, 2, 7, 14, 89, 178, 233, 281, 466, 562, 623, 1246, 1631, 1967, 3262, 3934, 20737, 25009, 41474, 50018, 65473, 130946, 145159, 175063, 290318, 350126, 458311, 916622, 5827097, 11654194, 40789679, 81579358]

約数ペア:

[(1, 81579358), (2, 40789679), (7, 11654194), (14, 5827097), (89, 916622), (178, 458311), (233, 350126), (281, 290318), (466, 175063), (562, 145159), (623, 130946), (1246, 65473), (1631, 50018), (1967, 41474), (3262, 25009), (3934, 20737)]