161971488

素因数分解:

$2^5\times 3^4\times 7^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:221

約数の個数: 240

約数和(自身を含む): 556174080

約数和(自身を除く): 394202592

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 54, 56, 63, 72, 79, 81, 84, 96, 108, 112, 113, 126, 144, 158, 162, 168, 189, 216, 224, 226, 237, 252, 288, 316, 324, 336, 339, 378, 432, 452, 474, 504, 553, 567, 632, 648, 672, 678, 711, 756, 791, 864, 904, 948, 1008, 1017, 1106, 1134, 1264, 1296, 1356, 1422, 1512, 1582, 1659, 1808, 1896, 2016, 2034, 2133, 2212, 2268, 2373, 2528, 2592, 2712, 2844, 3024, 3051, 3164, 3318, 3616, 3792, 4068, 4266, 4424, 4536, 4746, 4977, 5424, 5688, 6048, 6102, 6328, 6399, 6636, 7119, 7584, 8136, 8532, 8848, 8927, 9072, 9153, 9492, 9954, 10848, 11376, 12204, 12656, 12798, 13272, 14238, 14931, 16272, 17064, 17696, 17854, 18144, 18306, 18984, 19908, 21357, 22752, 24408, 25312, 25596, 26544, 26781, 28476, 29862, 32544, 34128, 35708, 36612, 37968, 39816, 42714, 44793, 48816, 51192, 53088, 53562, 56952, 59724, 62489, 64071, 68256, 71416, 73224, 75936, 79632, 80343, 85428, 89586, 97632, 102384, 107124, 113904, 119448, 124978, 128142, 142832, 146448, 159264, 160686, 170856, 179172, 187467, 204768, 214248, 227808, 238896, 241029, 249956, 256284, 285664, 292896, 321372, 341712, 358344, 374934, 428496, 477792, 482058, 499912, 512568, 562401, 642744, 683424, 716688, 723087, 749868, 856992, 964116, 999824, 1025136, 1124802, 1285488, 1433376, 1446174, 1499736, 1687203, 1928232, 1999648, 2050272, 2249604, 2570976, 2892348, 2999472, 3374406, 3856464, 4499208, 5061609, 5784696, 5998944, 6748812, 7712928, 8998416, 10123218, 11569392, 13497624, 17996832, 20246436, 23138784, 26995248, 40492872, 53990496, 80985744, 161971488]

約数ペア:

[(1, 161971488), (2, 80985744), (3, 53990496), (4, 40492872), (6, 26995248), (7, 23138784), (8, 20246436), (9, 17996832), (12, 13497624), (14, 11569392), (16, 10123218), (18, 8998416), (21, 7712928), (24, 6748812), (27, 5998944), (28, 5784696), (32, 5061609), (36, 4499208), (42, 3856464), (48, 3374406), (54, 2999472), (56, 2892348), (63, 2570976), (72, 2249604), (79, 2050272), (81, 1999648), (84, 1928232), (96, 1687203), (108, 1499736), (112, 1446174), (113, 1433376), (126, 1285488), (144, 1124802), (158, 1025136), (162, 999824), (168, 964116), (189, 856992), (216, 749868), (224, 723087), (226, 716688), (237, 683424), (252, 642744), (288, 562401), (316, 512568), (324, 499912), (336, 482058), (339, 477792), (378, 428496), (432, 374934), (452, 358344), (474, 341712), (504, 321372), (553, 292896), (567, 285664), (632, 256284), (648, 249956), (672, 241029), (678, 238896), (711, 227808), (756, 214248), (791, 204768), (864, 187467), (904, 179172), (948, 170856), (1008, 160686), (1017, 159264), (1106, 146448), (1134, 142832), (1264, 128142), (1296, 124978), (1356, 119448), (1422, 113904), (1512, 107124), (1582, 102384), (1659, 97632), (1808, 89586), (1896, 85428), (2016, 80343), (2034, 79632), (2133, 75936), (2212, 73224), (2268, 71416), (2373, 68256), (2528, 64071), (2592, 62489), (2712, 59724), (2844, 56952), (3024, 53562), (3051, 53088), (3164, 51192), (3318, 48816), (3616, 44793), (3792, 42714), (4068, 39816), (4266, 37968), (4424, 36612), (4536, 35708), (4746, 34128), (4977, 32544), (5424, 29862), (5688, 28476), (6048, 26781), (6102, 26544), (6328, 25596), (6399, 25312), (6636, 24408), (7119, 22752), (7584, 21357), (8136, 19908), (8532, 18984), (8848, 18306), (8927, 18144), (9072, 17854), (9153, 17696), (9492, 17064), (9954, 16272), (10848, 14931), (11376, 14238), (12204, 13272), (12656, 12798)]