77998000

素因数分解:

$2^4\times 5^3\times {\mathrm{59}}^1\times {\mathrm{661}}^1$

素因数の和:743

約数の個数: 80

約数和(自身を含む): 192085920

約数和(自身を除く): 114087920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 59, 80, 100, 118, 125, 200, 236, 250, 295, 400, 472, 500, 590, 661, 944, 1000, 1180, 1322, 1475, 2000, 2360, 2644, 2950, 3305, 4720, 5288, 5900, 6610, 7375, 10576, 11800, 13220, 14750, 16525, 23600, 26440, 29500, 33050, 38999, 52880, 59000, 66100, 77998, 82625, 118000, 132200, 155996, 165250, 194995, 264400, 311992, 330500, 389990, 623984, 661000, 779980, 974975, 1322000, 1559960, 1949950, 3119920, 3899900, 4874875, 7799800, 9749750, 15599600, 19499500, 38999000, 77998000]

約数ペア:

[(1, 77998000), (2, 38999000), (4, 19499500), (5, 15599600), (8, 9749750), (10, 7799800), (16, 4874875), (20, 3899900), (25, 3119920), (40, 1949950), (50, 1559960), (59, 1322000), (80, 974975), (100, 779980), (118, 661000), (125, 623984), (200, 389990), (236, 330500), (250, 311992), (295, 264400), (400, 194995), (472, 165250), (500, 155996), (590, 132200), (661, 118000), (944, 82625), (1000, 77998), (1180, 66100), (1322, 59000), (1475, 52880), (2000, 38999), (2360, 33050), (2644, 29500), (2950, 26440), (3305, 23600), (4720, 16525), (5288, 14750), (5900, 13220), (6610, 11800), (7375, 10576)]