20486400

素因数分解:

$2^8\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1$

素因数の和:137

約数の個数: 216

約数和(自身を含む): 74516064

約数和(自身を除く): 54029664

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 25, 30, 32, 33, 40, 44, 48, 50, 55, 60, 64, 66, 75, 80, 88, 96, 97, 100, 110, 120, 128, 132, 150, 160, 165, 176, 192, 194, 200, 220, 240, 256, 264, 275, 291, 300, 320, 330, 352, 384, 388, 400, 440, 480, 485, 528, 550, 582, 600, 640, 660, 704, 768, 776, 800, 825, 880, 960, 970, 1056, 1067, 1100, 1164, 1200, 1280, 1320, 1408, 1455, 1552, 1600, 1650, 1760, 1920, 1940, 2112, 2134, 2200, 2328, 2400, 2425, 2640, 2816, 2910, 3104, 3200, 3201, 3300, 3520, 3840, 3880, 4224, 4268, 4400, 4656, 4800, 4850, 5280, 5335, 5820, 6208, 6400, 6402, 6600, 7040, 7275, 7760, 8448, 8536, 8800, 9312, 9600, 9700, 10560, 10670, 11640, 12416, 12804, 13200, 14080, 14550, 15520, 16005, 17072, 17600, 18624, 19200, 19400, 21120, 21340, 23280, 24832, 25608, 26400, 26675, 29100, 31040, 32010, 34144, 35200, 37248, 38800, 42240, 42680, 46560, 51216, 52800, 53350, 58200, 62080, 64020, 68288, 70400, 74496, 77600, 80025, 85360, 93120, 102432, 105600, 106700, 116400, 124160, 128040, 136576, 155200, 160050, 170720, 186240, 204864, 211200, 213400, 232800, 256080, 273152, 310400, 320100, 341440, 372480, 409728, 426800, 465600, 512160, 620800, 640200, 682880, 819456, 853600, 931200, 1024320, 1280400, 1365760, 1707200, 1862400, 2048640, 2560800, 3414400, 4097280, 5121600, 6828800, 10243200, 20486400]

約数ペア:

[(1, 20486400), (2, 10243200), (3, 6828800), (4, 5121600), (5, 4097280), (6, 3414400), (8, 2560800), (10, 2048640), (11, 1862400), (12, 1707200), (15, 1365760), (16, 1280400), (20, 1024320), (22, 931200), (24, 853600), (25, 819456), (30, 682880), (32, 640200), (33, 620800), (40, 512160), (44, 465600), (48, 426800), (50, 409728), (55, 372480), (60, 341440), (64, 320100), (66, 310400), (75, 273152), (80, 256080), (88, 232800), (96, 213400), (97, 211200), (100, 204864), (110, 186240), (120, 170720), (128, 160050), (132, 155200), (150, 136576), (160, 128040), (165, 124160), (176, 116400), (192, 106700), (194, 105600), (200, 102432), (220, 93120), (240, 85360), (256, 80025), (264, 77600), (275, 74496), (291, 70400), (300, 68288), (320, 64020), (330, 62080), (352, 58200), (384, 53350), (388, 52800), (400, 51216), (440, 46560), (480, 42680), (485, 42240), (528, 38800), (550, 37248), (582, 35200), (600, 34144), (640, 32010), (660, 31040), (704, 29100), (768, 26675), (776, 26400), (800, 25608), (825, 24832), (880, 23280), (960, 21340), (970, 21120), (1056, 19400), (1067, 19200), (1100, 18624), (1164, 17600), (1200, 17072), (1280, 16005), (1320, 15520), (1408, 14550), (1455, 14080), (1552, 13200), (1600, 12804), (1650, 12416), (1760, 11640), (1920, 10670), (1940, 10560), (2112, 9700), (2134, 9600), (2200, 9312), (2328, 8800), (2400, 8536), (2425, 8448), (2640, 7760), (2816, 7275), (2910, 7040), (3104, 6600), (3200, 6402), (3201, 6400), (3300, 6208), (3520, 5820), (3840, 5335), (3880, 5280), (4224, 4850), (4268, 4800), (4400, 4656)]