82439920

素因数分解:

$2^4\times 5^1\times {\mathrm{661}}^1\times {\mathrm{1559}}^1$

素因数の和:2233

約数の個数: 40

約数和(自身を含む): 192085920

約数和(自身を除く): 109646000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 661, 1322, 1559, 2644, 3118, 3305, 5288, 6236, 6610, 7795, 10576, 12472, 13220, 15590, 24944, 26440, 31180, 52880, 62360, 124720, 1030499, 2060998, 4121996, 5152495, 8243992, 10304990, 16487984, 20609980, 41219960, 82439920]

約数ペア:

[(1, 82439920), (2, 41219960), (4, 20609980), (5, 16487984), (8, 10304990), (10, 8243992), (16, 5152495), (20, 4121996), (40, 2060998), (80, 1030499), (661, 124720), (1322, 62360), (1559, 52880), (2644, 31180), (3118, 26440), (3305, 24944), (5288, 15590), (6236, 13220), (6610, 12472), (7795, 10576)]