257665536

素因数分解:

$2^9\times 3^5\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:161

約数の個数: 240

約数和(自身を含む): 819218400

約数和(自身を除く): 561552864

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 27, 32, 36, 38, 48, 54, 57, 64, 72, 76, 81, 96, 108, 109, 114, 128, 144, 152, 162, 171, 192, 216, 218, 228, 243, 256, 288, 304, 324, 327, 342, 384, 432, 436, 456, 486, 512, 513, 576, 608, 648, 654, 684, 768, 864, 872, 912, 972, 981, 1026, 1152, 1216, 1296, 1308, 1368, 1536, 1539, 1728, 1744, 1824, 1944, 1962, 2052, 2071, 2304, 2432, 2592, 2616, 2736, 2943, 3078, 3456, 3488, 3648, 3888, 3924, 4104, 4142, 4608, 4617, 4864, 5184, 5232, 5472, 5886, 6156, 6213, 6912, 6976, 7296, 7776, 7848, 8208, 8284, 8829, 9234, 9728, 10368, 10464, 10944, 11772, 12312, 12426, 13824, 13952, 14592, 15552, 15696, 16416, 16568, 17658, 18468, 18639, 20736, 20928, 21888, 23544, 24624, 24852, 26487, 27904, 29184, 31104, 31392, 32832, 33136, 35316, 36936, 37278, 41472, 41856, 43776, 47088, 49248, 49704, 52974, 55808, 55917, 62208, 62784, 65664, 66272, 70632, 73872, 74556, 83712, 87552, 94176, 98496, 99408, 105948, 111834, 124416, 125568, 131328, 132544, 141264, 147744, 149112, 167424, 167751, 188352, 196992, 198816, 211896, 223668, 251136, 262656, 265088, 282528, 295488, 298224, 335502, 376704, 393984, 397632, 423792, 447336, 502272, 503253, 530176, 565056, 590976, 596448, 671004, 753408, 787968, 795264, 847584, 894672, 1006506, 1060352, 1130112, 1181952, 1192896, 1342008, 1506816, 1590528, 1695168, 1789344, 2013012, 2260224, 2363904, 2385792, 2684016, 3181056, 3390336, 3578688, 4026024, 4520448, 4771584, 5368032, 6780672, 7157376, 8052048, 9543168, 10736064, 13561344, 14314752, 16104096, 21472128, 28629504, 32208192, 42944256, 64416384, 85888512, 128832768, 257665536]

約数ペア:

[(1, 257665536), (2, 128832768), (3, 85888512), (4, 64416384), (6, 42944256), (8, 32208192), (9, 28629504), (12, 21472128), (16, 16104096), (18, 14314752), (19, 13561344), (24, 10736064), (27, 9543168), (32, 8052048), (36, 7157376), (38, 6780672), (48, 5368032), (54, 4771584), (57, 4520448), (64, 4026024), (72, 3578688), (76, 3390336), (81, 3181056), (96, 2684016), (108, 2385792), (109, 2363904), (114, 2260224), (128, 2013012), (144, 1789344), (152, 1695168), (162, 1590528), (171, 1506816), (192, 1342008), (216, 1192896), (218, 1181952), (228, 1130112), (243, 1060352), (256, 1006506), (288, 894672), (304, 847584), (324, 795264), (327, 787968), (342, 753408), (384, 671004), (432, 596448), (436, 590976), (456, 565056), (486, 530176), (512, 503253), (513, 502272), (576, 447336), (608, 423792), (648, 397632), (654, 393984), (684, 376704), (768, 335502), (864, 298224), (872, 295488), (912, 282528), (972, 265088), (981, 262656), (1026, 251136), (1152, 223668), (1216, 211896), (1296, 198816), (1308, 196992), (1368, 188352), (1536, 167751), (1539, 167424), (1728, 149112), (1744, 147744), (1824, 141264), (1944, 132544), (1962, 131328), (2052, 125568), (2071, 124416), (2304, 111834), (2432, 105948), (2592, 99408), (2616, 98496), (2736, 94176), (2943, 87552), (3078, 83712), (3456, 74556), (3488, 73872), (3648, 70632), (3888, 66272), (3924, 65664), (4104, 62784), (4142, 62208), (4608, 55917), (4617, 55808), (4864, 52974), (5184, 49704), (5232, 49248), (5472, 47088), (5886, 43776), (6156, 41856), (6213, 41472), (6912, 37278), (6976, 36936), (7296, 35316), (7776, 33136), (7848, 32832), (8208, 31392), (8284, 31104), (8829, 29184), (9234, 27904), (9728, 26487), (10368, 24852), (10464, 24624), (10944, 23544), (11772, 21888), (12312, 20928), (12426, 20736), (13824, 18639), (13952, 18468), (14592, 17658), (15552, 16568), (15696, 16416)]