2556760960

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:517

約数の個数: 256

約数和(自身を含む): 7106641920

約数和(自身を除く): 4549880960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 31, 32, 40, 46, 52, 62, 64, 65, 80, 92, 104, 115, 124, 128, 130, 155, 160, 184, 208, 230, 248, 260, 299, 310, 320, 368, 403, 416, 431, 460, 496, 520, 598, 620, 640, 713, 736, 806, 832, 862, 920, 992, 1040, 1196, 1240, 1426, 1472, 1495, 1612, 1664, 1724, 1840, 1984, 2015, 2080, 2155, 2392, 2480, 2852, 2944, 2990, 3224, 3448, 3565, 3680, 3968, 4030, 4160, 4310, 4784, 4960, 5603, 5704, 5980, 6448, 6896, 7130, 7360, 8060, 8320, 8620, 9269, 9568, 9913, 9920, 11206, 11408, 11960, 12896, 13361, 13792, 14260, 14720, 16120, 17240, 18538, 19136, 19826, 19840, 22412, 22816, 23920, 25792, 26722, 27584, 28015, 28520, 32240, 34480, 37076, 38272, 39652, 44824, 45632, 46345, 47840, 49565, 51584, 53444, 55168, 56030, 57040, 64480, 66805, 68960, 74152, 79304, 89648, 91264, 92690, 95680, 99130, 106888, 112060, 114080, 128869, 128960, 133610, 137920, 148304, 158608, 173693, 179296, 185380, 191360, 198260, 213776, 224120, 228160, 257738, 257920, 267220, 275840, 296608, 307303, 317216, 347386, 358592, 370760, 396520, 427552, 448240, 456320, 515476, 534440, 593216, 614606, 634432, 644345, 694772, 717184, 741520, 793040, 855104, 868465, 896480, 1030952, 1068880, 1186432, 1229212, 1268864, 1288690, 1389544, 1483040, 1536515, 1586080, 1710208, 1736930, 1792960, 2061904, 2137760, 2458424, 2577380, 2779088, 2966080, 3073030, 3172160, 3473860, 3585920, 3994939, 4123808, 4275520, 4916848, 5154760, 5558176, 5932160, 6146060, 6344320, 6947720, 7989878, 8247616, 8551040, 9833696, 10309520, 11116352, 12292120, 13895440, 15979756, 16495232, 19667392, 19974695, 20619040, 22232704, 24584240, 27790880, 31959512, 39334784, 39949390, 41238080, 49168480, 55581760, 63919024, 79898780, 82476160, 98336960, 111163520, 127838048, 159797560, 196673920, 255676096, 319595120, 511352192, 639190240, 1278380480, 2556760960]

約数ペア:

[(1, 2556760960), (2, 1278380480), (4, 639190240), (5, 511352192), (8, 319595120), (10, 255676096), (13, 196673920), (16, 159797560), (20, 127838048), (23, 111163520), (26, 98336960), (31, 82476160), (32, 79898780), (40, 63919024), (46, 55581760), (52, 49168480), (62, 41238080), (64, 39949390), (65, 39334784), (80, 31959512), (92, 27790880), (104, 24584240), (115, 22232704), (124, 20619040), (128, 19974695), (130, 19667392), (155, 16495232), (160, 15979756), (184, 13895440), (208, 12292120), (230, 11116352), (248, 10309520), (260, 9833696), (299, 8551040), (310, 8247616), (320, 7989878), (368, 6947720), (403, 6344320), (416, 6146060), (431, 5932160), (460, 5558176), (496, 5154760), (520, 4916848), (598, 4275520), (620, 4123808), (640, 3994939), (713, 3585920), (736, 3473860), (806, 3172160), (832, 3073030), (862, 2966080), (920, 2779088), (992, 2577380), (1040, 2458424), (1196, 2137760), (1240, 2061904), (1426, 1792960), (1472, 1736930), (1495, 1710208), (1612, 1586080), (1664, 1536515), (1724, 1483040), (1840, 1389544), (1984, 1288690), (2015, 1268864), (2080, 1229212), (2155, 1186432), (2392, 1068880), (2480, 1030952), (2852, 896480), (2944, 868465), (2990, 855104), (3224, 793040), (3448, 741520), (3565, 717184), (3680, 694772), (3968, 644345), (4030, 634432), (4160, 614606), (4310, 593216), (4784, 534440), (4960, 515476), (5603, 456320), (5704, 448240), (5980, 427552), (6448, 396520), (6896, 370760), (7130, 358592), (7360, 347386), (8060, 317216), (8320, 307303), (8620, 296608), (9269, 275840), (9568, 267220), (9913, 257920), (9920, 257738), (11206, 228160), (11408, 224120), (11960, 213776), (12896, 198260), (13361, 191360), (13792, 185380), (14260, 179296), (14720, 173693), (16120, 158608), (17240, 148304), (18538, 137920), (19136, 133610), (19826, 128960), (19840, 128869), (22412, 114080), (22816, 112060), (23920, 106888), (25792, 99130), (26722, 95680), (27584, 92690), (28015, 91264), (28520, 89648), (32240, 79304), (34480, 74152), (37076, 68960), (38272, 66805), (39652, 64480), (44824, 57040), (45632, 56030), (46345, 55168), (47840, 53444), (49565, 51584)]