1280840640

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1\times {\mathrm{223}}^1$

素因数の和:467

約数の個数: 224

約数和(自身を含む): 4238524416

約数和(自身を除く): 2957683776

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 155, 160, 186, 192, 193, 223, 240, 248, 310, 320, 372, 386, 446, 465, 480, 496, 579, 620, 669, 744, 772, 892, 930, 960, 965, 992, 1115, 1158, 1240, 1338, 1488, 1544, 1784, 1860, 1930, 1984, 2230, 2316, 2480, 2676, 2895, 2976, 3088, 3345, 3568, 3720, 3860, 4460, 4632, 4960, 5352, 5790, 5952, 5983, 6176, 6690, 6913, 7136, 7440, 7720, 8920, 9264, 9920, 10704, 11580, 11966, 12352, 13380, 13826, 14272, 14880, 15440, 17840, 17949, 18528, 20739, 21408, 23160, 23932, 26760, 27652, 29760, 29915, 30880, 34565, 35680, 35898, 37056, 41478, 42816, 43039, 46320, 47864, 53520, 55304, 59830, 61760, 69130, 71360, 71796, 82956, 86078, 89745, 92640, 95728, 103695, 107040, 110608, 119660, 129117, 138260, 143592, 165912, 172156, 179490, 185280, 191456, 207390, 214080, 215195, 221216, 239320, 258234, 276520, 287184, 331824, 344312, 358980, 382912, 414780, 430390, 442432, 478640, 516468, 553040, 574368, 645585, 663648, 688624, 717960, 829560, 860780, 957280, 1032936, 1106080, 1148736, 1291170, 1327296, 1334209, 1377248, 1435920, 1659120, 1721560, 1914560, 2065872, 2212160, 2582340, 2668418, 2754496, 2871840, 3318240, 3443120, 4002627, 4131744, 5164680, 5336836, 5743680, 6636480, 6671045, 6886240, 8005254, 8263488, 10329360, 10673672, 13342090, 13772480, 16010508, 20013135, 20658720, 21347344, 26684180, 32021016, 40026270, 41317440, 42694688, 53368360, 64042032, 80052540, 85389376, 106736720, 128084064, 160105080, 213473440, 256168128, 320210160, 426946880, 640420320, 1280840640]

約数ペア:

[(1, 1280840640), (2, 640420320), (3, 426946880), (4, 320210160), (5, 256168128), (6, 213473440), (8, 160105080), (10, 128084064), (12, 106736720), (15, 85389376), (16, 80052540), (20, 64042032), (24, 53368360), (30, 42694688), (31, 41317440), (32, 40026270), (40, 32021016), (48, 26684180), (60, 21347344), (62, 20658720), (64, 20013135), (80, 16010508), (93, 13772480), (96, 13342090), (120, 10673672), (124, 10329360), (155, 8263488), (160, 8005254), (186, 6886240), (192, 6671045), (193, 6636480), (223, 5743680), (240, 5336836), (248, 5164680), (310, 4131744), (320, 4002627), (372, 3443120), (386, 3318240), (446, 2871840), (465, 2754496), (480, 2668418), (496, 2582340), (579, 2212160), (620, 2065872), (669, 1914560), (744, 1721560), (772, 1659120), (892, 1435920), (930, 1377248), (960, 1334209), (965, 1327296), (992, 1291170), (1115, 1148736), (1158, 1106080), (1240, 1032936), (1338, 957280), (1488, 860780), (1544, 829560), (1784, 717960), (1860, 688624), (1930, 663648), (1984, 645585), (2230, 574368), (2316, 553040), (2480, 516468), (2676, 478640), (2895, 442432), (2976, 430390), (3088, 414780), (3345, 382912), (3568, 358980), (3720, 344312), (3860, 331824), (4460, 287184), (4632, 276520), (4960, 258234), (5352, 239320), (5790, 221216), (5952, 215195), (5983, 214080), (6176, 207390), (6690, 191456), (6913, 185280), (7136, 179490), (7440, 172156), (7720, 165912), (8920, 143592), (9264, 138260), (9920, 129117), (10704, 119660), (11580, 110608), (11966, 107040), (12352, 103695), (13380, 95728), (13826, 92640), (14272, 89745), (14880, 86078), (15440, 82956), (17840, 71796), (17949, 71360), (18528, 69130), (20739, 61760), (21408, 59830), (23160, 55304), (23932, 53520), (26760, 47864), (27652, 46320), (29760, 43039), (29915, 42816), (30880, 41478), (34565, 37056), (35680, 35898)]