320721408

素因数分解:

$2^9\times 3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:255

約数の個数: 240

約数和(自身を含む): 1081793856

約数和(自身を除く): 761072448

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 61, 63, 64, 72, 84, 96, 112, 122, 126, 128, 144, 163, 168, 183, 192, 224, 244, 252, 256, 288, 326, 336, 366, 384, 427, 448, 488, 489, 504, 512, 549, 576, 652, 672, 732, 768, 854, 896, 976, 978, 1008, 1098, 1141, 1152, 1281, 1304, 1344, 1464, 1467, 1536, 1708, 1792, 1952, 1956, 2016, 2196, 2282, 2304, 2562, 2608, 2688, 2928, 2934, 3416, 3423, 3584, 3843, 3904, 3912, 4032, 4392, 4564, 4608, 5124, 5216, 5376, 5856, 5868, 6832, 6846, 7686, 7808, 7824, 8064, 8784, 9128, 9943, 10248, 10269, 10432, 10752, 11712, 11736, 13664, 13692, 15372, 15616, 15648, 16128, 17568, 18256, 19886, 20496, 20538, 20864, 23424, 23472, 27328, 27384, 29829, 30744, 31232, 31296, 32256, 35136, 36512, 39772, 40992, 41076, 41728, 46848, 46944, 54656, 54768, 59658, 61488, 62592, 69601, 70272, 73024, 79544, 81984, 82152, 83456, 89487, 93696, 93888, 109312, 109536, 119316, 122976, 125184, 139202, 140544, 146048, 159088, 163968, 164304, 178974, 187776, 208803, 218624, 219072, 238632, 245952, 250368, 278404, 281088, 292096, 318176, 327936, 328608, 357948, 375552, 417606, 438144, 477264, 491904, 556808, 584192, 626409, 636352, 655872, 657216, 715896, 751104, 835212, 876288, 954528, 983808, 1113616, 1252818, 1272704, 1314432, 1431792, 1670424, 1752576, 1909056, 1967616, 2227232, 2505636, 2545408, 2628864, 2863584, 3340848, 3818112, 4454464, 5011272, 5090816, 5257728, 5727168, 6681696, 7636224, 8908928, 10022544, 11454336, 13363392, 15272448, 17817856, 20045088, 22908672, 26726784, 35635712, 40090176, 45817344, 53453568, 80180352, 106907136, 160360704, 320721408]

約数ペア:

[(1, 320721408), (2, 160360704), (3, 106907136), (4, 80180352), (6, 53453568), (7, 45817344), (8, 40090176), (9, 35635712), (12, 26726784), (14, 22908672), (16, 20045088), (18, 17817856), (21, 15272448), (24, 13363392), (28, 11454336), (32, 10022544), (36, 8908928), (42, 7636224), (48, 6681696), (56, 5727168), (61, 5257728), (63, 5090816), (64, 5011272), (72, 4454464), (84, 3818112), (96, 3340848), (112, 2863584), (122, 2628864), (126, 2545408), (128, 2505636), (144, 2227232), (163, 1967616), (168, 1909056), (183, 1752576), (192, 1670424), (224, 1431792), (244, 1314432), (252, 1272704), (256, 1252818), (288, 1113616), (326, 983808), (336, 954528), (366, 876288), (384, 835212), (427, 751104), (448, 715896), (488, 657216), (489, 655872), (504, 636352), (512, 626409), (549, 584192), (576, 556808), (652, 491904), (672, 477264), (732, 438144), (768, 417606), (854, 375552), (896, 357948), (976, 328608), (978, 327936), (1008, 318176), (1098, 292096), (1141, 281088), (1152, 278404), (1281, 250368), (1304, 245952), (1344, 238632), (1464, 219072), (1467, 218624), (1536, 208803), (1708, 187776), (1792, 178974), (1952, 164304), (1956, 163968), (2016, 159088), (2196, 146048), (2282, 140544), (2304, 139202), (2562, 125184), (2608, 122976), (2688, 119316), (2928, 109536), (2934, 109312), (3416, 93888), (3423, 93696), (3584, 89487), (3843, 83456), (3904, 82152), (3912, 81984), (4032, 79544), (4392, 73024), (4564, 70272), (4608, 69601), (5124, 62592), (5216, 61488), (5376, 59658), (5856, 54768), (5868, 54656), (6832, 46944), (6846, 46848), (7686, 41728), (7808, 41076), (7824, 40992), (8064, 39772), (8784, 36512), (9128, 35136), (9943, 32256), (10248, 31296), (10269, 31232), (10432, 30744), (10752, 29829), (11712, 27384), (11736, 27328), (13664, 23472), (13692, 23424), (15372, 20864), (15616, 20538), (15648, 20496), (16128, 19886), (17568, 18256)]