78680000

素因数分解:

$2^6\times 5^4\times 7^1\times {\mathrm{281}}^1$

素因数の和:320

約数の個数: 140

約数和(自身を含む): 223765872

約数和(自身を除く): 145085872

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 100, 112, 125, 140, 160, 175, 200, 224, 250, 280, 281, 320, 350, 400, 448, 500, 560, 562, 625, 700, 800, 875, 1000, 1120, 1124, 1250, 1400, 1405, 1600, 1750, 1967, 2000, 2240, 2248, 2500, 2800, 2810, 3500, 3934, 4000, 4375, 4496, 5000, 5600, 5620, 7000, 7025, 7868, 8000, 8750, 8992, 9835, 10000, 11200, 11240, 14000, 14050, 15736, 17500, 17984, 19670, 20000, 22480, 28000, 28100, 31472, 35000, 35125, 39340, 40000, 44960, 49175, 56000, 56200, 62944, 70000, 70250, 78680, 89920, 98350, 112400, 125888, 140000, 140500, 157360, 175625, 196700, 224800, 245875, 280000, 281000, 314720, 351250, 393400, 449600, 491750, 562000, 629440, 702500, 786800, 983500, 1124000, 1229375, 1405000, 1573600, 1967000, 2248000, 2458750, 2810000, 3147200, 3934000, 4917500, 5620000, 7868000, 9835000, 11240000, 15736000, 19670000, 39340000, 78680000]

約数ペア:

[(1, 78680000), (2, 39340000), (4, 19670000), (5, 15736000), (7, 11240000), (8, 9835000), (10, 7868000), (14, 5620000), (16, 4917500), (20, 3934000), (25, 3147200), (28, 2810000), (32, 2458750), (35, 2248000), (40, 1967000), (50, 1573600), (56, 1405000), (64, 1229375), (70, 1124000), (80, 983500), (100, 786800), (112, 702500), (125, 629440), (140, 562000), (160, 491750), (175, 449600), (200, 393400), (224, 351250), (250, 314720), (280, 281000), (281, 280000), (320, 245875), (350, 224800), (400, 196700), (448, 175625), (500, 157360), (560, 140500), (562, 140000), (625, 125888), (700, 112400), (800, 98350), (875, 89920), (1000, 78680), (1120, 70250), (1124, 70000), (1250, 62944), (1400, 56200), (1405, 56000), (1600, 49175), (1750, 44960), (1967, 40000), (2000, 39340), (2240, 35125), (2248, 35000), (2500, 31472), (2800, 28100), (2810, 28000), (3500, 22480), (3934, 20000), (4000, 19670), (4375, 17984), (4496, 17500), (5000, 15736), (5600, 14050), (5620, 14000), (7000, 11240), (7025, 11200), (7868, 10000), (8000, 9835), (8750, 8992)]