326784640

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:251

約数の個数: 256

約数和(自身を含む): 998000640

約数和(自身を除く): 671216000

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 31, 32, 35, 40, 52, 56, 62, 64, 65, 70, 80, 91, 104, 112, 124, 128, 130, 140, 155, 160, 181, 182, 208, 217, 224, 248, 260, 280, 310, 320, 362, 364, 403, 416, 434, 448, 455, 496, 520, 560, 620, 640, 724, 728, 806, 832, 868, 896, 905, 910, 992, 1040, 1085, 1120, 1240, 1267, 1448, 1456, 1612, 1664, 1736, 1810, 1820, 1984, 2015, 2080, 2170, 2240, 2353, 2480, 2534, 2821, 2896, 2912, 3224, 3472, 3620, 3640, 3968, 4030, 4160, 4340, 4480, 4706, 4960, 5068, 5611, 5642, 5792, 5824, 6335, 6448, 6944, 7240, 7280, 8060, 8320, 8680, 9412, 9920, 10136, 11222, 11284, 11584, 11648, 11765, 12670, 12896, 13888, 14105, 14480, 14560, 16120, 16471, 17360, 18824, 19840, 20272, 22444, 22568, 23168, 23530, 25340, 25792, 27776, 28055, 28210, 28960, 29120, 32240, 32942, 34720, 37648, 39277, 40544, 44888, 45136, 47060, 50680, 51584, 56110, 56420, 57920, 58240, 64480, 65884, 69440, 72943, 75296, 78554, 81088, 82355, 89776, 90272, 94120, 101360, 112220, 112840, 115840, 128960, 131768, 138880, 145886, 150592, 157108, 162176, 164710, 179552, 180544, 188240, 196385, 202720, 224440, 225680, 257920, 263536, 291772, 301184, 314216, 329420, 359104, 361088, 364715, 376480, 392770, 405440, 448880, 451360, 510601, 527072, 583544, 628432, 658840, 718208, 729430, 752960, 785540, 810880, 897760, 902720, 1021202, 1054144, 1167088, 1256864, 1317680, 1458860, 1505920, 1571080, 1795520, 1805440, 2042404, 2108288, 2334176, 2513728, 2553005, 2635360, 2917720, 3142160, 3591040, 4084808, 4668352, 5027456, 5106010, 5270720, 5835440, 6284320, 8169616, 9336704, 10212020, 10541440, 11670880, 12568640, 16339232, 20424040, 23341760, 25137280, 32678464, 40848080, 46683520, 65356928, 81696160, 163392320, 326784640]

約数ペア:

[(1, 326784640), (2, 163392320), (4, 81696160), (5, 65356928), (7, 46683520), (8, 40848080), (10, 32678464), (13, 25137280), (14, 23341760), (16, 20424040), (20, 16339232), (26, 12568640), (28, 11670880), (31, 10541440), (32, 10212020), (35, 9336704), (40, 8169616), (52, 6284320), (56, 5835440), (62, 5270720), (64, 5106010), (65, 5027456), (70, 4668352), (80, 4084808), (91, 3591040), (104, 3142160), (112, 2917720), (124, 2635360), (128, 2553005), (130, 2513728), (140, 2334176), (155, 2108288), (160, 2042404), (181, 1805440), (182, 1795520), (208, 1571080), (217, 1505920), (224, 1458860), (248, 1317680), (260, 1256864), (280, 1167088), (310, 1054144), (320, 1021202), (362, 902720), (364, 897760), (403, 810880), (416, 785540), (434, 752960), (448, 729430), (455, 718208), (496, 658840), (520, 628432), (560, 583544), (620, 527072), (640, 510601), (724, 451360), (728, 448880), (806, 405440), (832, 392770), (868, 376480), (896, 364715), (905, 361088), (910, 359104), (992, 329420), (1040, 314216), (1085, 301184), (1120, 291772), (1240, 263536), (1267, 257920), (1448, 225680), (1456, 224440), (1612, 202720), (1664, 196385), (1736, 188240), (1810, 180544), (1820, 179552), (1984, 164710), (2015, 162176), (2080, 157108), (2170, 150592), (2240, 145886), (2353, 138880), (2480, 131768), (2534, 128960), (2821, 115840), (2896, 112840), (2912, 112220), (3224, 101360), (3472, 94120), (3620, 90272), (3640, 89776), (3968, 82355), (4030, 81088), (4160, 78554), (4340, 75296), (4480, 72943), (4706, 69440), (4960, 65884), (5068, 64480), (5611, 58240), (5642, 57920), (5792, 56420), (5824, 56110), (6335, 51584), (6448, 50680), (6944, 47060), (7240, 45136), (7280, 44888), (8060, 40544), (8320, 39277), (8680, 37648), (9412, 34720), (9920, 32942), (10136, 32240), (11222, 29120), (11284, 28960), (11584, 28210), (11648, 28055), (11765, 27776), (12670, 25792), (12896, 25340), (13888, 23530), (14105, 23168), (14480, 22568), (14560, 22444), (16120, 20272), (16471, 19840), (17360, 18824)]