256255920

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:185

約数の個数: 320

約数和(自身を含む): 942796800

約数和(自身を除く): 686540880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 31, 36, 40, 43, 45, 48, 54, 60, 62, 72, 80, 86, 89, 90, 93, 108, 120, 124, 129, 135, 144, 155, 172, 178, 180, 186, 215, 216, 240, 248, 258, 267, 270, 279, 310, 344, 356, 360, 372, 387, 430, 432, 445, 465, 496, 516, 534, 540, 558, 620, 645, 688, 712, 720, 744, 774, 801, 837, 860, 890, 930, 1032, 1068, 1080, 1116, 1161, 1240, 1290, 1333, 1335, 1395, 1424, 1488, 1548, 1602, 1674, 1720, 1780, 1860, 1935, 2064, 2136, 2160, 2232, 2322, 2403, 2480, 2580, 2666, 2670, 2759, 2790, 3096, 3204, 3348, 3440, 3560, 3720, 3827, 3870, 3999, 4005, 4185, 4272, 4464, 4644, 4806, 5160, 5332, 5340, 5518, 5580, 5805, 6192, 6408, 6665, 6696, 7120, 7440, 7654, 7740, 7998, 8010, 8277, 8370, 9288, 9612, 10320, 10664, 10680, 11036, 11160, 11481, 11610, 11997, 12015, 12816, 13330, 13392, 13795, 15308, 15480, 15996, 16020, 16554, 16740, 18576, 19135, 19224, 19995, 21328, 21360, 22072, 22320, 22962, 23220, 23994, 24030, 24831, 26660, 27590, 30616, 30960, 31992, 32040, 33108, 33480, 34443, 35991, 38270, 38448, 39990, 41385, 44144, 45924, 46440, 47988, 48060, 49662, 53320, 55180, 57405, 59985, 61232, 63984, 64080, 66216, 66960, 68886, 71982, 74493, 76540, 79980, 82770, 91848, 92880, 95976, 96120, 99324, 103329, 106640, 110360, 114810, 118637, 119970, 124155, 132432, 137772, 143964, 148986, 153080, 159960, 165540, 172215, 179955, 183696, 191952, 192240, 198648, 206658, 220720, 229620, 237274, 239940, 248310, 275544, 287928, 297972, 306160, 319920, 331080, 344430, 355911, 359910, 372465, 397296, 413316, 459240, 474548, 479880, 496620, 516645, 551088, 575856, 593185, 595944, 662160, 688860, 711822, 719820, 744930, 826632, 918480, 949096, 959760, 993240, 1033290, 1067733, 1186370, 1191888, 1377720, 1423644, 1439640, 1489860, 1653264, 1779555, 1898192, 1986480, 2066580, 2135466, 2372740, 2755440, 2847288, 2879280, 2979720, 3203199, 3559110, 4133160, 4270932, 4745480, 5338665, 5694576, 5959440, 6406398, 7118220, 8266320, 8541864, 9490960, 10677330, 12812796, 14236440, 16015995, 17083728, 21354660, 25625592, 28472880, 32031990, 42709320, 51251184, 64063980, 85418640, 128127960, 256255920]

約数ペア:

[(1, 256255920), (2, 128127960), (3, 85418640), (4, 64063980), (5, 51251184), (6, 42709320), (8, 32031990), (9, 28472880), (10, 25625592), (12, 21354660), (15, 17083728), (16, 16015995), (18, 14236440), (20, 12812796), (24, 10677330), (27, 9490960), (30, 8541864), (31, 8266320), (36, 7118220), (40, 6406398), (43, 5959440), (45, 5694576), (48, 5338665), (54, 4745480), (60, 4270932), (62, 4133160), (72, 3559110), (80, 3203199), (86, 2979720), (89, 2879280), (90, 2847288), (93, 2755440), (108, 2372740), (120, 2135466), (124, 2066580), (129, 1986480), (135, 1898192), (144, 1779555), (155, 1653264), (172, 1489860), (178, 1439640), (180, 1423644), (186, 1377720), (215, 1191888), (216, 1186370), (240, 1067733), (248, 1033290), (258, 993240), (267, 959760), (270, 949096), (279, 918480), (310, 826632), (344, 744930), (356, 719820), (360, 711822), (372, 688860), (387, 662160), (430, 595944), (432, 593185), (445, 575856), (465, 551088), (496, 516645), (516, 496620), (534, 479880), (540, 474548), (558, 459240), (620, 413316), (645, 397296), (688, 372465), (712, 359910), (720, 355911), (744, 344430), (774, 331080), (801, 319920), (837, 306160), (860, 297972), (890, 287928), (930, 275544), (1032, 248310), (1068, 239940), (1080, 237274), (1116, 229620), (1161, 220720), (1240, 206658), (1290, 198648), (1333, 192240), (1335, 191952), (1395, 183696), (1424, 179955), (1488, 172215), (1548, 165540), (1602, 159960), (1674, 153080), (1720, 148986), (1780, 143964), (1860, 137772), (1935, 132432), (2064, 124155), (2136, 119970), (2160, 118637), (2232, 114810), (2322, 110360), (2403, 106640), (2480, 103329), (2580, 99324), (2666, 96120), (2670, 95976), (2759, 92880), (2790, 91848), (3096, 82770), (3204, 79980), (3348, 76540), (3440, 74493), (3560, 71982), (3720, 68886), (3827, 66960), (3870, 66216), (3999, 64080), (4005, 63984), (4185, 61232), (4272, 59985), (4464, 57405), (4644, 55180), (4806, 53320), (5160, 49662), (5332, 48060), (5340, 47988), (5518, 46440), (5580, 45924), (5805, 44144), (6192, 41385), (6408, 39990), (6665, 38448), (6696, 38270), (7120, 35991), (7440, 34443), (7654, 33480), (7740, 33108), (7998, 32040), (8010, 31992), (8277, 30960), (8370, 30616), (9288, 27590), (9612, 26660), (10320, 24831), (10664, 24030), (10680, 23994), (11036, 23220), (11160, 22962), (11481, 22320), (11610, 22072), (11997, 21360), (12015, 21328), (12816, 19995), (13330, 19224), (13392, 19135), (13795, 18576), (15308, 16740), (15480, 16554), (15996, 16020)]