21895000960

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{66949}}^1$

素因数の和:67048

約数の個数: 128

約数和(自身を含む): 60640632000

約数和(自身を除く): 38745631040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 73, 80, 112, 128, 140, 146, 160, 224, 280, 292, 320, 365, 448, 511, 560, 584, 640, 730, 896, 1022, 1120, 1168, 1460, 2044, 2240, 2336, 2555, 2920, 4088, 4480, 4672, 5110, 5840, 8176, 9344, 10220, 11680, 16352, 20440, 23360, 32704, 40880, 46720, 65408, 66949, 81760, 133898, 163520, 267796, 327040, 334745, 468643, 535592, 669490, 937286, 1071184, 1338980, 1874572, 2142368, 2343215, 2677960, 3749144, 4284736, 4686430, 4887277, 5355920, 7498288, 8569472, 9372860, 9774554, 10711840, 14996576, 18745720, 19549108, 21423680, 24436385, 29993152, 34210939, 37491440, 39098216, 42847360, 48872770, 59986304, 68421878, 74982880, 78196432, 97745540, 136843756, 149965760, 156392864, 171054695, 195491080, 273687512, 299931520, 312785728, 342109390, 390982160, 547375024, 625571456, 684218780, 781964320, 1094750048, 1368437560, 1563928640, 2189500096, 2736875120, 3127857280, 4379000192, 5473750240, 10947500480, 21895000960]

約数ペア:

[(1, 21895000960), (2, 10947500480), (4, 5473750240), (5, 4379000192), (7, 3127857280), (8, 2736875120), (10, 2189500096), (14, 1563928640), (16, 1368437560), (20, 1094750048), (28, 781964320), (32, 684218780), (35, 625571456), (40, 547375024), (56, 390982160), (64, 342109390), (70, 312785728), (73, 299931520), (80, 273687512), (112, 195491080), (128, 171054695), (140, 156392864), (146, 149965760), (160, 136843756), (224, 97745540), (280, 78196432), (292, 74982880), (320, 68421878), (365, 59986304), (448, 48872770), (511, 42847360), (560, 39098216), (584, 37491440), (640, 34210939), (730, 29993152), (896, 24436385), (1022, 21423680), (1120, 19549108), (1168, 18745720), (1460, 14996576), (2044, 10711840), (2240, 9774554), (2336, 9372860), (2555, 8569472), (2920, 7498288), (4088, 5355920), (4480, 4887277), (4672, 4686430), (5110, 4284736), (5840, 3749144), (8176, 2677960), (9344, 2343215), (10220, 2142368), (11680, 1874572), (16352, 1338980), (20440, 1071184), (23360, 937286), (32704, 669490), (40880, 535592), (46720, 468643), (65408, 334745), (66949, 327040), (81760, 267796), (133898, 163520)]