78639920

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{16661}}^1$

素因数の和:16733

約数の個数: 40

約数和(自身を含む): 185947920

約数和(自身を除く): 107308000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 590, 944, 1180, 2360, 4720, 16661, 33322, 66644, 83305, 133288, 166610, 266576, 333220, 666440, 982999, 1332880, 1965998, 3931996, 4914995, 7863992, 9829990, 15727984, 19659980, 39319960, 78639920]

約数ペア:

[(1, 78639920), (2, 39319960), (4, 19659980), (5, 15727984), (8, 9829990), (10, 7863992), (16, 4914995), (20, 3931996), (40, 1965998), (59, 1332880), (80, 982999), (118, 666440), (236, 333220), (295, 266576), (472, 166610), (590, 133288), (944, 83305), (1180, 66644), (2360, 33322), (4720, 16661)]