257981472

素因数分解:

$2^5\times 3^2\times 7^2\times {\mathrm{101}}^1\times {\mathrm{181}}^1$

素因数の和:312

約数の個数: 216

約数和(自身を含む): 866623212

約数和(自身を除く): 608641740

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 49, 56, 63, 72, 84, 96, 98, 101, 112, 126, 144, 147, 168, 181, 196, 202, 224, 252, 288, 294, 303, 336, 362, 392, 404, 441, 504, 543, 588, 606, 672, 707, 724, 784, 808, 882, 909, 1008, 1086, 1176, 1212, 1267, 1414, 1448, 1568, 1616, 1629, 1764, 1818, 2016, 2121, 2172, 2352, 2424, 2534, 2828, 2896, 3232, 3258, 3528, 3636, 3801, 4242, 4344, 4704, 4848, 4949, 5068, 5656, 5792, 6363, 6516, 7056, 7272, 7602, 8484, 8688, 8869, 9696, 9898, 10136, 11312, 11403, 12726, 13032, 14112, 14544, 14847, 15204, 16968, 17376, 17738, 18281, 19796, 20272, 22624, 22806, 25452, 26064, 26607, 29088, 29694, 30408, 33936, 35476, 36562, 39592, 40544, 44541, 45612, 50904, 52128, 53214, 54843, 59388, 60816, 67872, 70952, 73124, 79184, 79821, 89082, 91224, 101808, 106428, 109686, 118776, 121632, 127967, 141904, 146248, 158368, 159642, 164529, 178164, 182448, 203616, 212856, 219372, 237552, 255934, 283808, 292496, 319284, 329058, 356328, 364896, 383901, 425712, 438744, 475104, 511868, 584992, 638568, 658116, 712656, 767802, 851424, 877488, 895769, 1023736, 1151703, 1277136, 1316232, 1425312, 1535604, 1754976, 1791538, 2047472, 2303406, 2554272, 2632464, 2687307, 3071208, 3583076, 4094944, 4606812, 5264928, 5374614, 6142416, 7166152, 8061921, 9213624, 10749228, 12284832, 14332304, 16123842, 18427248, 21498456, 28664608, 32247684, 36854496, 42996912, 64495368, 85993824, 128990736, 257981472]

約数ペア:

[(1, 257981472), (2, 128990736), (3, 85993824), (4, 64495368), (6, 42996912), (7, 36854496), (8, 32247684), (9, 28664608), (12, 21498456), (14, 18427248), (16, 16123842), (18, 14332304), (21, 12284832), (24, 10749228), (28, 9213624), (32, 8061921), (36, 7166152), (42, 6142416), (48, 5374614), (49, 5264928), (56, 4606812), (63, 4094944), (72, 3583076), (84, 3071208), (96, 2687307), (98, 2632464), (101, 2554272), (112, 2303406), (126, 2047472), (144, 1791538), (147, 1754976), (168, 1535604), (181, 1425312), (196, 1316232), (202, 1277136), (224, 1151703), (252, 1023736), (288, 895769), (294, 877488), (303, 851424), (336, 767802), (362, 712656), (392, 658116), (404, 638568), (441, 584992), (504, 511868), (543, 475104), (588, 438744), (606, 425712), (672, 383901), (707, 364896), (724, 356328), (784, 329058), (808, 319284), (882, 292496), (909, 283808), (1008, 255934), (1086, 237552), (1176, 219372), (1212, 212856), (1267, 203616), (1414, 182448), (1448, 178164), (1568, 164529), (1616, 159642), (1629, 158368), (1764, 146248), (1818, 141904), (2016, 127967), (2121, 121632), (2172, 118776), (2352, 109686), (2424, 106428), (2534, 101808), (2828, 91224), (2896, 89082), (3232, 79821), (3258, 79184), (3528, 73124), (3636, 70952), (3801, 67872), (4242, 60816), (4344, 59388), (4704, 54843), (4848, 53214), (4949, 52128), (5068, 50904), (5656, 45612), (5792, 44541), (6363, 40544), (6516, 39592), (7056, 36562), (7272, 35476), (7602, 33936), (8484, 30408), (8688, 29694), (8869, 29088), (9696, 26607), (9898, 26064), (10136, 25452), (11312, 22806), (11403, 22624), (12726, 20272), (13032, 19796), (14112, 18281), (14544, 17738), (14847, 17376), (15204, 16968)]