19888400000

素因数分解:

$2^7\times 5^5\times 7^1\times {\mathrm{7103}}^1$

素因数の和:7149

約数の個数: 192

約数和(自身を含む): 56606376960

約数和(自身を除く): 36717976960

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, 128, 140, 160, 175, 200, 224, 250, 280, 320, 350, 400, 448, 500, 560, 625, 640, 700, 800, 875, 896, 1000, 1120, 1250, 1400, 1600, 1750, 2000, 2240, 2500, 2800, 3125, 3200, 3500, 4000, 4375, 4480, 5000, 5600, 6250, 7000, 7103, 8000, 8750, 10000, 11200, 12500, 14000, 14206, 16000, 17500, 20000, 21875, 22400, 25000, 28000, 28412, 35000, 35515, 40000, 43750, 49721, 50000, 56000, 56824, 70000, 71030, 80000, 87500, 99442, 100000, 112000, 113648, 140000, 142060, 175000, 177575, 198884, 200000, 227296, 248605, 280000, 284120, 350000, 355150, 397768, 400000, 454592, 497210, 560000, 568240, 700000, 710300, 795536, 887875, 909184, 994420, 1136480, 1243025, 1400000, 1420600, 1591072, 1775750, 1988840, 2272960, 2486050, 2800000, 2841200, 3182144, 3551500, 3977680, 4439375, 4545920, 4972100, 5682400, 6215125, 6364288, 7103000, 7955360, 8878750, 9944200, 11364800, 12430250, 14206000, 15910720, 17757500, 19888400, 22196875, 22729600, 24860500, 28412000, 31075625, 31821440, 35515000, 39776800, 44393750, 49721000, 56824000, 62151250, 71030000, 79553600, 88787500, 99442000, 113648000, 124302500, 142060000, 155378125, 159107200, 177575000, 198884000, 248605000, 284120000, 310756250, 355150000, 397768000, 497210000, 568240000, 621512500, 710300000, 795536000, 994420000, 1243025000, 1420600000, 1988840000, 2486050000, 2841200000, 3977680000, 4972100000, 9944200000, 19888400000]

約数ペア:

[(1, 19888400000), (2, 9944200000), (4, 4972100000), (5, 3977680000), (7, 2841200000), (8, 2486050000), (10, 1988840000), (14, 1420600000), (16, 1243025000), (20, 994420000), (25, 795536000), (28, 710300000), (32, 621512500), (35, 568240000), (40, 497210000), (50, 397768000), (56, 355150000), (64, 310756250), (70, 284120000), (80, 248605000), (100, 198884000), (112, 177575000), (125, 159107200), (128, 155378125), (140, 142060000), (160, 124302500), (175, 113648000), (200, 99442000), (224, 88787500), (250, 79553600), (280, 71030000), (320, 62151250), (350, 56824000), (400, 49721000), (448, 44393750), (500, 39776800), (560, 35515000), (625, 31821440), (640, 31075625), (700, 28412000), (800, 24860500), (875, 22729600), (896, 22196875), (1000, 19888400), (1120, 17757500), (1250, 15910720), (1400, 14206000), (1600, 12430250), (1750, 11364800), (2000, 9944200), (2240, 8878750), (2500, 7955360), (2800, 7103000), (3125, 6364288), (3200, 6215125), (3500, 5682400), (4000, 4972100), (4375, 4545920), (4480, 4439375), (5000, 3977680), (5600, 3551500), (6250, 3182144), (7000, 2841200), (7103, 2800000), (8000, 2486050), (8750, 2272960), (10000, 1988840), (11200, 1775750), (12500, 1591072), (14000, 1420600), (14206, 1400000), (16000, 1243025), (17500, 1136480), (20000, 994420), (21875, 909184), (22400, 887875), (25000, 795536), (28000, 710300), (28412, 700000), (35000, 568240), (35515, 560000), (40000, 497210), (43750, 454592), (49721, 400000), (50000, 397768), (56000, 355150), (56824, 350000), (70000, 284120), (71030, 280000), (80000, 248605), (87500, 227296), (99442, 200000), (100000, 198884), (112000, 177575), (113648, 175000), (140000, 142060)]