68180000

素因数分解:

$2^5\times 5^4\times 7^1\times {\mathrm{487}}^1$

素因数の和:524

約数の個数: 120

約数和(自身を含む): 192088512

約数和(自身を除く): 123908512

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 70, 80, 100, 112, 125, 140, 160, 175, 200, 224, 250, 280, 350, 400, 487, 500, 560, 625, 700, 800, 875, 974, 1000, 1120, 1250, 1400, 1750, 1948, 2000, 2435, 2500, 2800, 3409, 3500, 3896, 4000, 4375, 4870, 5000, 5600, 6818, 7000, 7792, 8750, 9740, 10000, 12175, 13636, 14000, 15584, 17045, 17500, 19480, 20000, 24350, 27272, 28000, 34090, 35000, 38960, 48700, 54544, 60875, 68180, 70000, 77920, 85225, 97400, 109088, 121750, 136360, 140000, 170450, 194800, 243500, 272720, 304375, 340900, 389600, 426125, 487000, 545440, 608750, 681800, 852250, 974000, 1217500, 1363600, 1704500, 1948000, 2130625, 2435000, 2727200, 3409000, 4261250, 4870000, 6818000, 8522500, 9740000, 13636000, 17045000, 34090000, 68180000]

約数ペア:

[(1, 68180000), (2, 34090000), (4, 17045000), (5, 13636000), (7, 9740000), (8, 8522500), (10, 6818000), (14, 4870000), (16, 4261250), (20, 3409000), (25, 2727200), (28, 2435000), (32, 2130625), (35, 1948000), (40, 1704500), (50, 1363600), (56, 1217500), (70, 974000), (80, 852250), (100, 681800), (112, 608750), (125, 545440), (140, 487000), (160, 426125), (175, 389600), (200, 340900), (224, 304375), (250, 272720), (280, 243500), (350, 194800), (400, 170450), (487, 140000), (500, 136360), (560, 121750), (625, 109088), (700, 97400), (800, 85225), (875, 77920), (974, 70000), (1000, 68180), (1120, 60875), (1250, 54544), (1400, 48700), (1750, 38960), (1948, 35000), (2000, 34090), (2435, 28000), (2500, 27272), (2800, 24350), (3409, 20000), (3500, 19480), (3896, 17500), (4000, 17045), (4375, 15584), (4870, 14000), (5000, 13636), (5600, 12175), (6818, 10000), (7000, 9740), (7792, 8750)]