40180000

素因数分解:

$2^5\times 5^4\times 7^2\times {\mathrm{41}}^1$

素因数の和:85

約数の個数: 180

約数和(自身を含む): 117791982

約数和(自身を除く): 77611982

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, 3280, 3500, 3920, 4000, 4018, 4100, 4375, 4592, 4900, 5000, 5125, 5600, 5740, 6125, 6560, 7000, 7175, 7840, 8036, 8200, 8750, 9184, 9800, 10000, 10045, 10250, 11480, 12250, 14000, 14350, 16072, 16400, 17500, 19600, 20000, 20090, 20500, 22960, 24500, 25625, 28000, 28700, 30625, 32144, 32800, 35000, 35875, 39200, 40180, 41000, 45920, 49000, 50225, 51250, 57400, 61250, 64288, 70000, 71750, 80360, 82000, 98000, 100450, 102500, 114800, 122500, 140000, 143500, 160720, 164000, 179375, 196000, 200900, 205000, 229600, 245000, 251125, 287000, 321440, 358750, 401800, 410000, 490000, 502250, 574000, 717500, 803600, 820000, 980000, 1004500, 1148000, 1255625, 1435000, 1607200, 2009000, 2511250, 2870000, 4018000, 5022500, 5740000, 8036000, 10045000, 20090000, 40180000]

約数ペア:

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