642950000

素因数分解:

$2^4\times 5^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1$

素因数の和:218

約数の個数: 240

約数和(自身を含む): 1952875008

約数和(自身を除く): 1309925008

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 25, 28, 35, 40, 44, 50, 55, 56, 70, 77, 80, 88, 100, 110, 112, 125, 140, 154, 167, 175, 176, 200, 220, 250, 275, 280, 308, 334, 350, 385, 400, 440, 500, 550, 560, 616, 625, 668, 700, 770, 835, 875, 880, 1000, 1100, 1169, 1232, 1250, 1336, 1375, 1400, 1540, 1670, 1750, 1837, 1925, 2000, 2200, 2338, 2500, 2672, 2750, 2800, 3080, 3125, 3340, 3500, 3674, 3850, 4175, 4375, 4400, 4676, 5000, 5500, 5845, 6160, 6250, 6680, 6875, 7000, 7348, 7700, 8350, 8750, 9185, 9352, 9625, 10000, 11000, 11690, 12500, 12859, 13360, 13750, 14000, 14696, 15400, 16700, 17500, 18370, 18704, 19250, 20875, 21875, 22000, 23380, 25000, 25718, 27500, 29225, 29392, 30800, 33400, 34375, 35000, 36740, 38500, 41750, 43750, 45925, 46760, 48125, 50000, 51436, 55000, 58450, 64295, 66800, 68750, 70000, 73480, 77000, 83500, 87500, 91850, 93520, 96250, 102872, 104375, 110000, 116900, 128590, 137500, 146125, 146960, 154000, 167000, 175000, 183700, 192500, 205744, 208750, 229625, 233800, 240625, 257180, 275000, 292250, 321475, 334000, 350000, 367400, 385000, 417500, 459250, 467600, 481250, 514360, 521875, 550000, 584500, 642950, 730625, 734800, 770000, 835000, 918500, 962500, 1028720, 1043750, 1148125, 1169000, 1285900, 1461250, 1607375, 1670000, 1837000, 1925000, 2087500, 2296250, 2338000, 2571800, 2922500, 3214750, 3653125, 3674000, 3850000, 4175000, 4592500, 5143600, 5740625, 5845000, 6429500, 7306250, 8036875, 8350000, 9185000, 11481250, 11690000, 12859000, 14612500, 16073750, 18370000, 22962500, 25718000, 29225000, 32147500, 40184375, 45925000, 58450000, 64295000, 80368750, 91850000, 128590000, 160737500, 321475000, 642950000]

約数ペア:

[(1, 642950000), (2, 321475000), (4, 160737500), (5, 128590000), (7, 91850000), (8, 80368750), (10, 64295000), (11, 58450000), (14, 45925000), (16, 40184375), (20, 32147500), (22, 29225000), (25, 25718000), (28, 22962500), (35, 18370000), (40, 16073750), (44, 14612500), (50, 12859000), (55, 11690000), (56, 11481250), (70, 9185000), (77, 8350000), (80, 8036875), (88, 7306250), (100, 6429500), (110, 5845000), (112, 5740625), (125, 5143600), (140, 4592500), (154, 4175000), (167, 3850000), (175, 3674000), (176, 3653125), (200, 3214750), (220, 2922500), (250, 2571800), (275, 2338000), (280, 2296250), (308, 2087500), (334, 1925000), (350, 1837000), (385, 1670000), (400, 1607375), (440, 1461250), (500, 1285900), (550, 1169000), (560, 1148125), (616, 1043750), (625, 1028720), (668, 962500), (700, 918500), (770, 835000), (835, 770000), (875, 734800), (880, 730625), (1000, 642950), (1100, 584500), (1169, 550000), (1232, 521875), (1250, 514360), (1336, 481250), (1375, 467600), (1400, 459250), (1540, 417500), (1670, 385000), (1750, 367400), (1837, 350000), (1925, 334000), (2000, 321475), (2200, 292250), (2338, 275000), (2500, 257180), (2672, 240625), (2750, 233800), (2800, 229625), (3080, 208750), (3125, 205744), (3340, 192500), (3500, 183700), (3674, 175000), (3850, 167000), (4175, 154000), (4375, 146960), (4400, 146125), (4676, 137500), (5000, 128590), (5500, 116900), (5845, 110000), (6160, 104375), (6250, 102872), (6680, 96250), (6875, 93520), (7000, 91850), (7348, 87500), (7700, 83500), (8350, 77000), (8750, 73480), (9185, 70000), (9352, 68750), (9625, 66800), (10000, 64295), (11000, 58450), (11690, 55000), (12500, 51436), (12859, 50000), (13360, 48125), (13750, 46760), (14000, 45925), (14696, 43750), (15400, 41750), (16700, 38500), (17500, 36740), (18370, 35000), (18704, 34375), (19250, 33400), (20875, 30800), (21875, 29392), (22000, 29225), (23380, 27500), (25000, 25718)]