281262080

素因数分解:

$2^{11}\times 5^1\times {\mathrm{11}}^2\times {\mathrm{227}}^1$

素因数の和:276

約数の個数: 144

約数和(自身を含む): 745060680

約数和(自身を除く): 463798600

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 121, 128, 160, 176, 220, 227, 242, 256, 320, 352, 440, 454, 484, 512, 605, 640, 704, 880, 908, 968, 1024, 1135, 1210, 1280, 1408, 1760, 1816, 1936, 2048, 2270, 2420, 2497, 2560, 2816, 3520, 3632, 3872, 4540, 4840, 4994, 5120, 5632, 7040, 7264, 7744, 9080, 9680, 9988, 10240, 11264, 12485, 14080, 14528, 15488, 18160, 19360, 19976, 22528, 24970, 27467, 28160, 29056, 30976, 36320, 38720, 39952, 49940, 54934, 56320, 58112, 61952, 72640, 77440, 79904, 99880, 109868, 112640, 116224, 123904, 137335, 145280, 154880, 159808, 199760, 219736, 232448, 247808, 274670, 290560, 309760, 319616, 399520, 439472, 464896, 549340, 581120, 619520, 639232, 799040, 878944, 1098680, 1162240, 1239040, 1278464, 1598080, 1757888, 2197360, 2324480, 2556928, 3196160, 3515776, 4394720, 5113856, 6392320, 7031552, 8789440, 12784640, 14063104, 17578880, 25569280, 28126208, 35157760, 56252416, 70315520, 140631040, 281262080]

約数ペア:

[(1, 281262080), (2, 140631040), (4, 70315520), (5, 56252416), (8, 35157760), (10, 28126208), (11, 25569280), (16, 17578880), (20, 14063104), (22, 12784640), (32, 8789440), (40, 7031552), (44, 6392320), (55, 5113856), (64, 4394720), (80, 3515776), (88, 3196160), (110, 2556928), (121, 2324480), (128, 2197360), (160, 1757888), (176, 1598080), (220, 1278464), (227, 1239040), (242, 1162240), (256, 1098680), (320, 878944), (352, 799040), (440, 639232), (454, 619520), (484, 581120), (512, 549340), (605, 464896), (640, 439472), (704, 399520), (880, 319616), (908, 309760), (968, 290560), (1024, 274670), (1135, 247808), (1210, 232448), (1280, 219736), (1408, 199760), (1760, 159808), (1816, 154880), (1936, 145280), (2048, 137335), (2270, 123904), (2420, 116224), (2497, 112640), (2560, 109868), (2816, 99880), (3520, 79904), (3632, 77440), (3872, 72640), (4540, 61952), (4840, 58112), (4994, 56320), (5120, 54934), (5632, 49940), (7040, 39952), (7264, 38720), (7744, 36320), (9080, 30976), (9680, 29056), (9988, 28160), (10240, 27467), (11264, 24970), (12485, 22528), (14080, 19976), (14528, 19360), (15488, 18160)]