200900000

素因数分解:

$2^5\times 5^5\times 7^2\times {\mathrm{41}}^1$

素因数の和:90

約数の個数: 216

約数和(自身を含む): 589110732

約数和(自身を除く): 388210732

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 41, 49, 50, 56, 70, 80, 82, 98, 100, 112, 125, 140, 160, 164, 175, 196, 200, 205, 224, 245, 250, 280, 287, 328, 350, 392, 400, 410, 490, 500, 560, 574, 625, 656, 700, 784, 800, 820, 875, 980, 1000, 1025, 1120, 1148, 1225, 1250, 1312, 1400, 1435, 1568, 1640, 1750, 1960, 2000, 2009, 2050, 2296, 2450, 2500, 2800, 2870, 3125, 3280, 3500, 3920, 4000, 4018, 4100, 4375, 4592, 4900, 5000, 5125, 5600, 5740, 6125, 6250, 6560, 7000, 7175, 7840, 8036, 8200, 8750, 9184, 9800, 10000, 10045, 10250, 11480, 12250, 12500, 14000, 14350, 16072, 16400, 17500, 19600, 20000, 20090, 20500, 21875, 22960, 24500, 25000, 25625, 28000, 28700, 30625, 32144, 32800, 35000, 35875, 39200, 40180, 41000, 43750, 45920, 49000, 50000, 50225, 51250, 57400, 61250, 64288, 70000, 71750, 80360, 82000, 87500, 98000, 100000, 100450, 102500, 114800, 122500, 128125, 140000, 143500, 153125, 160720, 164000, 175000, 179375, 196000, 200900, 205000, 229600, 245000, 251125, 256250, 287000, 306250, 321440, 350000, 358750, 401800, 410000, 490000, 502250, 512500, 574000, 612500, 700000, 717500, 803600, 820000, 896875, 980000, 1004500, 1025000, 1148000, 1225000, 1255625, 1435000, 1607200, 1793750, 2009000, 2050000, 2450000, 2511250, 2870000, 3587500, 4018000, 4100000, 4900000, 5022500, 5740000, 6278125, 7175000, 8036000, 10045000, 12556250, 14350000, 20090000, 25112500, 28700000, 40180000, 50225000, 100450000, 200900000]

約数ペア:

[(1, 200900000), (2, 100450000), (4, 50225000), (5, 40180000), (7, 28700000), (8, 25112500), (10, 20090000), (14, 14350000), (16, 12556250), (20, 10045000), (25, 8036000), (28, 7175000), (32, 6278125), (35, 5740000), (40, 5022500), (41, 4900000), (49, 4100000), (50, 4018000), (56, 3587500), (70, 2870000), (80, 2511250), (82, 2450000), (98, 2050000), (100, 2009000), (112, 1793750), (125, 1607200), (140, 1435000), (160, 1255625), (164, 1225000), (175, 1148000), (196, 1025000), (200, 1004500), (205, 980000), (224, 896875), (245, 820000), (250, 803600), (280, 717500), (287, 700000), (328, 612500), (350, 574000), (392, 512500), (400, 502250), (410, 490000), (490, 410000), (500, 401800), (560, 358750), (574, 350000), (625, 321440), (656, 306250), (700, 287000), (784, 256250), (800, 251125), (820, 245000), (875, 229600), (980, 205000), (1000, 200900), (1025, 196000), (1120, 179375), (1148, 175000), (1225, 164000), (1250, 160720), (1312, 153125), (1400, 143500), (1435, 140000), (1568, 128125), (1640, 122500), (1750, 114800), (1960, 102500), (2000, 100450), (2009, 100000), (2050, 98000), (2296, 87500), (2450, 82000), (2500, 80360), (2800, 71750), (2870, 70000), (3125, 64288), (3280, 61250), (3500, 57400), (3920, 51250), (4000, 50225), (4018, 50000), (4100, 49000), (4375, 45920), (4592, 43750), (4900, 41000), (5000, 40180), (5125, 39200), (5600, 35875), (5740, 35000), (6125, 32800), (6250, 32144), (6560, 30625), (7000, 28700), (7175, 28000), (7840, 25625), (8036, 25000), (8200, 24500), (8750, 22960), (9184, 21875), (9800, 20500), (10000, 20090), (10045, 20000), (10250, 19600), (11480, 17500), (12250, 16400), (12500, 16072), (14000, 14350)]