199001000

素因数分解:

$2^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{229}}^1$

素因数の和:340

約数の個数: 128

約数和(自身を含む): 516672000

約数和(自身を除く): 317671000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 79, 88, 100, 110, 125, 158, 200, 220, 229, 250, 275, 316, 395, 440, 458, 500, 550, 632, 790, 869, 916, 1000, 1100, 1145, 1375, 1580, 1738, 1832, 1975, 2200, 2290, 2519, 2750, 3160, 3476, 3950, 4345, 4580, 5038, 5500, 5725, 6952, 7900, 8690, 9160, 9875, 10076, 11000, 11450, 12595, 15800, 17380, 18091, 19750, 20152, 21725, 22900, 25190, 28625, 34760, 36182, 39500, 43450, 45800, 50380, 57250, 62975, 72364, 79000, 86900, 90455, 100760, 108625, 114500, 125950, 144728, 173800, 180910, 199001, 217250, 229000, 251900, 314875, 361820, 398002, 434500, 452275, 503800, 629750, 723640, 796004, 869000, 904550, 995005, 1259500, 1592008, 1809100, 1990010, 2261375, 2519000, 3618200, 3980020, 4522750, 4975025, 7960040, 9045500, 9950050, 18091000, 19900100, 24875125, 39800200, 49750250, 99500500, 199001000]

約数ペア:

[(1, 199001000), (2, 99500500), (4, 49750250), (5, 39800200), (8, 24875125), (10, 19900100), (11, 18091000), (20, 9950050), (22, 9045500), (25, 7960040), (40, 4975025), (44, 4522750), (50, 3980020), (55, 3618200), (79, 2519000), (88, 2261375), (100, 1990010), (110, 1809100), (125, 1592008), (158, 1259500), (200, 995005), (220, 904550), (229, 869000), (250, 796004), (275, 723640), (316, 629750), (395, 503800), (440, 452275), (458, 434500), (500, 398002), (550, 361820), (632, 314875), (790, 251900), (869, 229000), (916, 217250), (1000, 199001), (1100, 180910), (1145, 173800), (1375, 144728), (1580, 125950), (1738, 114500), (1832, 108625), (1975, 100760), (2200, 90455), (2290, 86900), (2519, 79000), (2750, 72364), (3160, 62975), (3476, 57250), (3950, 50380), (4345, 45800), (4580, 43450), (5038, 39500), (5500, 36182), (5725, 34760), (6952, 28625), (7900, 25190), (8690, 22900), (9160, 21725), (9875, 20152), (10076, 19750), (11000, 18091), (11450, 17380), (12595, 15800)]