218540000

素因数分解:

$2^5\times 5^4\times 7^2\times {\mathrm{223}}^1$

素因数の和:267

約数の個数: 180

約数和(自身を含む): 628223904

約数和(自身を除く): 409683904

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 125, 140, 160, 175, 196, 200, 223, 224, 245, 250, 280, 350, 392, 400, 446, 490, 500, 560, 625, 700, 784, 800, 875, 892, 980, 1000, 1115, 1120, 1225, 1250, 1400, 1561, 1568, 1750, 1784, 1960, 2000, 2230, 2450, 2500, 2800, 3122, 3500, 3568, 3920, 4000, 4375, 4460, 4900, 5000, 5575, 5600, 6125, 6244, 7000, 7136, 7805, 7840, 8750, 8920, 9800, 10000, 10927, 11150, 12250, 12488, 14000, 15610, 17500, 17840, 19600, 20000, 21854, 22300, 24500, 24976, 27875, 28000, 30625, 31220, 35000, 35680, 39025, 39200, 43708, 44600, 49000, 49952, 54635, 55750, 61250, 62440, 70000, 78050, 87416, 89200, 98000, 109270, 111500, 122500, 124880, 139375, 140000, 156100, 174832, 178400, 195125, 196000, 218540, 223000, 245000, 249760, 273175, 278750, 312200, 349664, 390250, 437080, 446000, 490000, 546350, 557500, 624400, 780500, 874160, 892000, 975625, 980000, 1092700, 1115000, 1248800, 1365875, 1561000, 1748320, 1951250, 2185400, 2230000, 2731750, 3122000, 3902500, 4370800, 4460000, 5463500, 6244000, 6829375, 7805000, 8741600, 10927000, 13658750, 15610000, 21854000, 27317500, 31220000, 43708000, 54635000, 109270000, 218540000]

約数ペア:

[(1, 218540000), (2, 109270000), (4, 54635000), (5, 43708000), (7, 31220000), (8, 27317500), (10, 21854000), (14, 15610000), (16, 13658750), (20, 10927000), (25, 8741600), (28, 7805000), (32, 6829375), (35, 6244000), (40, 5463500), (49, 4460000), (50, 4370800), (56, 3902500), (70, 3122000), (80, 2731750), (98, 2230000), (100, 2185400), (112, 1951250), (125, 1748320), (140, 1561000), (160, 1365875), (175, 1248800), (196, 1115000), (200, 1092700), (223, 980000), (224, 975625), (245, 892000), (250, 874160), (280, 780500), (350, 624400), (392, 557500), (400, 546350), (446, 490000), (490, 446000), (500, 437080), (560, 390250), (625, 349664), (700, 312200), (784, 278750), (800, 273175), (875, 249760), (892, 245000), (980, 223000), (1000, 218540), (1115, 196000), (1120, 195125), (1225, 178400), (1250, 174832), (1400, 156100), (1561, 140000), (1568, 139375), (1750, 124880), (1784, 122500), (1960, 111500), (2000, 109270), (2230, 98000), (2450, 89200), (2500, 87416), (2800, 78050), (3122, 70000), (3500, 62440), (3568, 61250), (3920, 55750), (4000, 54635), (4375, 49952), (4460, 49000), (4900, 44600), (5000, 43708), (5575, 39200), (5600, 39025), (6125, 35680), (6244, 35000), (7000, 31220), (7136, 30625), (7805, 28000), (7840, 27875), (8750, 24976), (8920, 24500), (9800, 22300), (10000, 21854), (10927, 20000), (11150, 19600), (12250, 17840), (12488, 17500), (14000, 15610)]