77279920

素因数分解:

$2^4\times 5^1\times {\mathrm{263}}^1\times {\mathrm{3673}}^1$

素因数の和:3949

約数の個数: 40

約数和(自身を含む): 180408096

約数和(自身を除く): 103128176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 263, 526, 1052, 1315, 2104, 2630, 3673, 4208, 5260, 7346, 10520, 14692, 18365, 21040, 29384, 36730, 58768, 73460, 146920, 293840, 965999, 1931998, 3863996, 4829995, 7727992, 9659990, 15455984, 19319980, 38639960, 77279920]

約数ペア:

[(1, 77279920), (2, 38639960), (4, 19319980), (5, 15455984), (8, 9659990), (10, 7727992), (16, 4829995), (20, 3863996), (40, 1931998), (80, 965999), (263, 293840), (526, 146920), (1052, 73460), (1315, 58768), (2104, 36730), (2630, 29384), (3673, 21040), (4208, 18365), (5260, 14692), (7346, 10520)]