640583680

素因数分解:

$2^{11}\times 5^1\times {\mathrm{11}}^3\times {\mathrm{47}}^1$

素因数の和:107

約数の個数: 192

約数和(自身を含む): 1726583040

約数和(自身を除く): 1085999360

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 47, 55, 64, 80, 88, 94, 110, 121, 128, 160, 176, 188, 220, 235, 242, 256, 320, 352, 376, 440, 470, 484, 512, 517, 605, 640, 704, 752, 880, 940, 968, 1024, 1034, 1210, 1280, 1331, 1408, 1504, 1760, 1880, 1936, 2048, 2068, 2420, 2560, 2585, 2662, 2816, 3008, 3520, 3760, 3872, 4136, 4840, 5120, 5170, 5324, 5632, 5687, 6016, 6655, 7040, 7520, 7744, 8272, 9680, 10240, 10340, 10648, 11264, 11374, 12032, 13310, 14080, 15040, 15488, 16544, 19360, 20680, 21296, 22528, 22748, 24064, 26620, 28160, 28435, 30080, 30976, 33088, 38720, 41360, 42592, 45496, 48128, 53240, 56320, 56870, 60160, 61952, 62557, 66176, 77440, 82720, 85184, 90992, 96256, 106480, 112640, 113740, 120320, 123904, 125114, 132352, 154880, 165440, 170368, 181984, 212960, 227480, 240640, 247808, 250228, 264704, 309760, 312785, 330880, 340736, 363968, 425920, 454960, 481280, 500456, 529408, 619520, 625570, 661760, 681472, 727936, 851840, 909920, 1000912, 1058816, 1239040, 1251140, 1323520, 1362944, 1455872, 1703680, 1819840, 2001824, 2502280, 2647040, 2725888, 2911744, 3407360, 3639680, 4003648, 5004560, 5294080, 5823488, 6814720, 7279360, 8007296, 10009120, 11646976, 13629440, 14558720, 16014592, 20018240, 29117440, 32029184, 40036480, 58234880, 64058368, 80072960, 128116736, 160145920, 320291840, 640583680]

約数ペア:

[(1, 640583680), (2, 320291840), (4, 160145920), (5, 128116736), (8, 80072960), (10, 64058368), (11, 58234880), (16, 40036480), (20, 32029184), (22, 29117440), (32, 20018240), (40, 16014592), (44, 14558720), (47, 13629440), (55, 11646976), (64, 10009120), (80, 8007296), (88, 7279360), (94, 6814720), (110, 5823488), (121, 5294080), (128, 5004560), (160, 4003648), (176, 3639680), (188, 3407360), (220, 2911744), (235, 2725888), (242, 2647040), (256, 2502280), (320, 2001824), (352, 1819840), (376, 1703680), (440, 1455872), (470, 1362944), (484, 1323520), (512, 1251140), (517, 1239040), (605, 1058816), (640, 1000912), (704, 909920), (752, 851840), (880, 727936), (940, 681472), (968, 661760), (1024, 625570), (1034, 619520), (1210, 529408), (1280, 500456), (1331, 481280), (1408, 454960), (1504, 425920), (1760, 363968), (1880, 340736), (1936, 330880), (2048, 312785), (2068, 309760), (2420, 264704), (2560, 250228), (2585, 247808), (2662, 240640), (2816, 227480), (3008, 212960), (3520, 181984), (3760, 170368), (3872, 165440), (4136, 154880), (4840, 132352), (5120, 125114), (5170, 123904), (5324, 120320), (5632, 113740), (5687, 112640), (6016, 106480), (6655, 96256), (7040, 90992), (7520, 85184), (7744, 82720), (8272, 77440), (9680, 66176), (10240, 62557), (10340, 61952), (10648, 60160), (11264, 56870), (11374, 56320), (12032, 53240), (13310, 48128), (14080, 45496), (15040, 42592), (15488, 41360), (16544, 38720), (19360, 33088), (20680, 30976), (21296, 30080), (22528, 28435), (22748, 28160), (24064, 26620)]