20370000

素因数分解:

$2^4\times 3^1\times 5^4\times 7^1\times {\mathrm{97}}^1$

素因数の和:135

約数の個数: 200

約数和(自身を含む): 75925696

約数和(自身を除く): 55555696

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 35, 40, 42, 48, 50, 56, 60, 70, 75, 80, 84, 97, 100, 105, 112, 120, 125, 140, 150, 168, 175, 194, 200, 210, 240, 250, 280, 291, 300, 336, 350, 375, 388, 400, 420, 485, 500, 525, 560, 582, 600, 625, 679, 700, 750, 776, 840, 875, 970, 1000, 1050, 1164, 1200, 1250, 1358, 1400, 1455, 1500, 1552, 1680, 1750, 1875, 1940, 2000, 2037, 2100, 2328, 2425, 2500, 2625, 2716, 2800, 2910, 3000, 3395, 3500, 3750, 3880, 4074, 4200, 4375, 4656, 4850, 5000, 5250, 5432, 5820, 6000, 6790, 7000, 7275, 7500, 7760, 8148, 8400, 8750, 9700, 10000, 10185, 10500, 10864, 11640, 12125, 13125, 13580, 14000, 14550, 15000, 16296, 16975, 17500, 19400, 20370, 21000, 23280, 24250, 26250, 27160, 29100, 30000, 32592, 33950, 35000, 36375, 38800, 40740, 42000, 48500, 50925, 52500, 54320, 58200, 60625, 67900, 70000, 72750, 81480, 84875, 97000, 101850, 105000, 116400, 121250, 135800, 145500, 162960, 169750, 181875, 194000, 203700, 210000, 242500, 254625, 271600, 291000, 339500, 363750, 407400, 424375, 485000, 509250, 582000, 679000, 727500, 814800, 848750, 970000, 1018500, 1273125, 1358000, 1455000, 1697500, 2037000, 2546250, 2910000, 3395000, 4074000, 5092500, 6790000, 10185000, 20370000]

約数ペア:

[(1, 20370000), (2, 10185000), (3, 6790000), (4, 5092500), (5, 4074000), (6, 3395000), (7, 2910000), (8, 2546250), (10, 2037000), (12, 1697500), (14, 1455000), (15, 1358000), (16, 1273125), (20, 1018500), (21, 970000), (24, 848750), (25, 814800), (28, 727500), (30, 679000), (35, 582000), (40, 509250), (42, 485000), (48, 424375), (50, 407400), (56, 363750), (60, 339500), (70, 291000), (75, 271600), (80, 254625), (84, 242500), (97, 210000), (100, 203700), (105, 194000), (112, 181875), (120, 169750), (125, 162960), (140, 145500), (150, 135800), (168, 121250), (175, 116400), (194, 105000), (200, 101850), (210, 97000), (240, 84875), (250, 81480), (280, 72750), (291, 70000), (300, 67900), (336, 60625), (350, 58200), (375, 54320), (388, 52500), (400, 50925), (420, 48500), (485, 42000), (500, 40740), (525, 38800), (560, 36375), (582, 35000), (600, 33950), (625, 32592), (679, 30000), (700, 29100), (750, 27160), (776, 26250), (840, 24250), (875, 23280), (970, 21000), (1000, 20370), (1050, 19400), (1164, 17500), (1200, 16975), (1250, 16296), (1358, 15000), (1400, 14550), (1455, 14000), (1500, 13580), (1552, 13125), (1680, 12125), (1750, 11640), (1875, 10864), (1940, 10500), (2000, 10185), (2037, 10000), (2100, 9700), (2328, 8750), (2425, 8400), (2500, 8148), (2625, 7760), (2716, 7500), (2800, 7275), (2910, 7000), (3000, 6790), (3395, 6000), (3500, 5820), (3750, 5432), (3880, 5250), (4074, 5000), (4200, 4850), (4375, 4656)]