638519904

素因数分解:

$2^5\times 3^2\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{251}}^1$

素因数の和:362

約数の個数: 216

約数和(自身を含む): 2031270696

約数和(自身を除く): 1392750792

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 32, 33, 36, 44, 48, 66, 72, 73, 88, 96, 99, 121, 132, 144, 146, 176, 198, 219, 242, 251, 264, 288, 292, 352, 363, 396, 438, 484, 502, 528, 584, 657, 726, 753, 792, 803, 876, 968, 1004, 1056, 1089, 1168, 1314, 1452, 1506, 1584, 1606, 1752, 1936, 2008, 2178, 2259, 2336, 2409, 2628, 2761, 2904, 3012, 3168, 3212, 3504, 3872, 4016, 4356, 4518, 4818, 5256, 5522, 5808, 6024, 6424, 7008, 7227, 8032, 8283, 8712, 8833, 9036, 9636, 10512, 11044, 11616, 12048, 12848, 14454, 16566, 17424, 17666, 18072, 18323, 19272, 21024, 22088, 24096, 24849, 25696, 26499, 28908, 30371, 33132, 34848, 35332, 36144, 36646, 38544, 44176, 49698, 52998, 54969, 57816, 60742, 66264, 70664, 72288, 73292, 77088, 79497, 88352, 91113, 99396, 105996, 109938, 115632, 121484, 132528, 141328, 146584, 158994, 164907, 182226, 198792, 201553, 211992, 219876, 231264, 242968, 265056, 273339, 282656, 293168, 317988, 329814, 364452, 397584, 403106, 423984, 439752, 485936, 546678, 586336, 604659, 635976, 659628, 728904, 795168, 806212, 847968, 879504, 971872, 1093356, 1209318, 1271952, 1319256, 1457808, 1612424, 1759008, 1813977, 2186712, 2217083, 2418636, 2543904, 2638512, 2915616, 3224848, 3627954, 4373424, 4434166, 4837272, 5277024, 6449696, 6651249, 7255908, 8746848, 8868332, 9674544, 13302498, 14511816, 17736664, 19349088, 19953747, 26604996, 29023632, 35473328, 39907494, 53209992, 58047264, 70946656, 79814988, 106419984, 159629976, 212839968, 319259952, 638519904]

約数ペア:

[(1, 638519904), (2, 319259952), (3, 212839968), (4, 159629976), (6, 106419984), (8, 79814988), (9, 70946656), (11, 58047264), (12, 53209992), (16, 39907494), (18, 35473328), (22, 29023632), (24, 26604996), (32, 19953747), (33, 19349088), (36, 17736664), (44, 14511816), (48, 13302498), (66, 9674544), (72, 8868332), (73, 8746848), (88, 7255908), (96, 6651249), (99, 6449696), (121, 5277024), (132, 4837272), (144, 4434166), (146, 4373424), (176, 3627954), (198, 3224848), (219, 2915616), (242, 2638512), (251, 2543904), (264, 2418636), (288, 2217083), (292, 2186712), (352, 1813977), (363, 1759008), (396, 1612424), (438, 1457808), (484, 1319256), (502, 1271952), (528, 1209318), (584, 1093356), (657, 971872), (726, 879504), (753, 847968), (792, 806212), (803, 795168), (876, 728904), (968, 659628), (1004, 635976), (1056, 604659), (1089, 586336), (1168, 546678), (1314, 485936), (1452, 439752), (1506, 423984), (1584, 403106), (1606, 397584), (1752, 364452), (1936, 329814), (2008, 317988), (2178, 293168), (2259, 282656), (2336, 273339), (2409, 265056), (2628, 242968), (2761, 231264), (2904, 219876), (3012, 211992), (3168, 201553), (3212, 198792), (3504, 182226), (3872, 164907), (4016, 158994), (4356, 146584), (4518, 141328), (4818, 132528), (5256, 121484), (5522, 115632), (5808, 109938), (6024, 105996), (6424, 99396), (7008, 91113), (7227, 88352), (8032, 79497), (8283, 77088), (8712, 73292), (8833, 72288), (9036, 70664), (9636, 66264), (10512, 60742), (11044, 57816), (11616, 54969), (12048, 52998), (12848, 49698), (14454, 44176), (16566, 38544), (17424, 36646), (17666, 36144), (18072, 35332), (18323, 34848), (19272, 33132), (21024, 30371), (22088, 28908), (24096, 26499), (24849, 25696)]