278970240

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:205

約数の個数: 256

約数和(自身を含む): 947865600

約数和(自身を除く): 668895360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 43, 48, 60, 62, 64, 80, 86, 93, 96, 109, 120, 124, 128, 129, 155, 160, 172, 186, 192, 215, 218, 240, 248, 258, 310, 320, 327, 344, 372, 384, 430, 436, 465, 480, 496, 516, 545, 620, 640, 645, 654, 688, 744, 860, 872, 930, 960, 992, 1032, 1090, 1240, 1290, 1308, 1333, 1376, 1488, 1635, 1720, 1744, 1860, 1920, 1984, 2064, 2180, 2480, 2580, 2616, 2666, 2752, 2976, 3270, 3379, 3440, 3488, 3720, 3968, 3999, 4128, 4360, 4687, 4960, 5160, 5232, 5332, 5504, 5952, 6540, 6665, 6758, 6880, 6976, 7440, 7998, 8256, 8720, 9374, 9920, 10137, 10320, 10464, 10664, 11904, 13080, 13330, 13516, 13760, 13952, 14061, 14880, 15996, 16512, 16895, 17440, 18748, 19840, 19995, 20274, 20640, 20928, 21328, 23435, 26160, 26660, 27032, 27520, 28122, 29760, 31992, 33790, 34880, 37496, 39990, 40548, 41280, 41856, 42656, 46870, 50685, 52320, 53320, 54064, 56244, 59520, 63984, 67580, 69760, 70305, 74992, 79980, 81096, 82560, 85312, 93740, 101370, 104640, 106640, 108128, 112488, 127968, 135160, 140610, 145297, 149984, 159960, 162192, 170624, 187480, 202740, 209280, 213280, 216256, 224976, 255936, 270320, 281220, 290594, 299968, 319920, 324384, 374960, 405480, 426560, 432512, 435891, 449952, 511872, 540640, 562440, 581188, 599936, 639840, 648768, 726485, 749920, 810960, 853120, 871782, 899904, 1081280, 1124880, 1162376, 1279680, 1297536, 1452970, 1499840, 1621920, 1743564, 1799808, 2162560, 2179455, 2249760, 2324752, 2559360, 2905940, 2999680, 3243840, 3487128, 4358910, 4499520, 4649504, 5811880, 6487680, 6974256, 8717820, 8999040, 9299008, 11623760, 13948512, 17435640, 18598016, 23247520, 27897024, 34871280, 46495040, 55794048, 69742560, 92990080, 139485120, 278970240]

約数ペア:

[(1, 278970240), (2, 139485120), (3, 92990080), (4, 69742560), (5, 55794048), (6, 46495040), (8, 34871280), (10, 27897024), (12, 23247520), (15, 18598016), (16, 17435640), (20, 13948512), (24, 11623760), (30, 9299008), (31, 8999040), (32, 8717820), (40, 6974256), (43, 6487680), (48, 5811880), (60, 4649504), (62, 4499520), (64, 4358910), (80, 3487128), (86, 3243840), (93, 2999680), (96, 2905940), (109, 2559360), (120, 2324752), (124, 2249760), (128, 2179455), (129, 2162560), (155, 1799808), (160, 1743564), (172, 1621920), (186, 1499840), (192, 1452970), (215, 1297536), (218, 1279680), (240, 1162376), (248, 1124880), (258, 1081280), (310, 899904), (320, 871782), (327, 853120), (344, 810960), (372, 749920), (384, 726485), (430, 648768), (436, 639840), (465, 599936), (480, 581188), (496, 562440), (516, 540640), (545, 511872), (620, 449952), (640, 435891), (645, 432512), (654, 426560), (688, 405480), (744, 374960), (860, 324384), (872, 319920), (930, 299968), (960, 290594), (992, 281220), (1032, 270320), (1090, 255936), (1240, 224976), (1290, 216256), (1308, 213280), (1333, 209280), (1376, 202740), (1488, 187480), (1635, 170624), (1720, 162192), (1744, 159960), (1860, 149984), (1920, 145297), (1984, 140610), (2064, 135160), (2180, 127968), (2480, 112488), (2580, 108128), (2616, 106640), (2666, 104640), (2752, 101370), (2976, 93740), (3270, 85312), (3379, 82560), (3440, 81096), (3488, 79980), (3720, 74992), (3968, 70305), (3999, 69760), (4128, 67580), (4360, 63984), (4687, 59520), (4960, 56244), (5160, 54064), (5232, 53320), (5332, 52320), (5504, 50685), (5952, 46870), (6540, 42656), (6665, 41856), (6758, 41280), (6880, 40548), (6976, 39990), (7440, 37496), (7998, 34880), (8256, 33790), (8720, 31992), (9374, 29760), (9920, 28122), (10137, 27520), (10320, 27032), (10464, 26660), (10664, 26160), (11904, 23435), (13080, 21328), (13330, 20928), (13516, 20640), (13760, 20274), (13952, 19995), (14061, 19840), (14880, 18748), (15996, 17440), (16512, 16895)]