640461888

素因数分解:

$2^6\times 3^2\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{373}}^1$

素因数の和:673

約数の個数: 168

約数和(自身を含む): 2015435136

約数和(自身を除く): 1374973248

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 32, 33, 36, 44, 48, 64, 66, 72, 88, 96, 99, 132, 144, 176, 192, 198, 264, 271, 288, 352, 373, 396, 528, 542, 576, 704, 746, 792, 813, 1056, 1084, 1119, 1492, 1584, 1626, 2112, 2168, 2238, 2439, 2981, 2984, 3168, 3252, 3357, 4103, 4336, 4476, 4878, 5962, 5968, 6336, 6504, 6714, 8206, 8672, 8943, 8952, 9756, 11924, 11936, 12309, 13008, 13428, 16412, 17344, 17886, 17904, 19512, 23848, 23872, 24618, 26016, 26829, 26856, 32824, 35772, 35808, 36927, 39024, 47696, 49236, 52032, 53658, 53712, 65648, 71544, 71616, 73854, 78048, 95392, 98472, 101083, 107316, 107424, 131296, 143088, 147708, 156096, 190784, 196944, 202166, 214632, 214848, 262592, 286176, 295416, 303249, 393888, 404332, 429264, 572352, 590832, 606498, 787776, 808664, 858528, 909747, 1111913, 1181664, 1212996, 1617328, 1717056, 1819494, 2223826, 2363328, 2425992, 3234656, 3335739, 3638988, 4447652, 4851984, 6469312, 6671478, 7277976, 8895304, 9703968, 10007217, 13342956, 14555952, 17790608, 19407936, 20014434, 26685912, 29111904, 35581216, 40028868, 53371824, 58223808, 71162432, 80057736, 106743648, 160115472, 213487296, 320230944, 640461888]

約数ペア:

[(1, 640461888), (2, 320230944), (3, 213487296), (4, 160115472), (6, 106743648), (8, 80057736), (9, 71162432), (11, 58223808), (12, 53371824), (16, 40028868), (18, 35581216), (22, 29111904), (24, 26685912), (32, 20014434), (33, 19407936), (36, 17790608), (44, 14555952), (48, 13342956), (64, 10007217), (66, 9703968), (72, 8895304), (88, 7277976), (96, 6671478), (99, 6469312), (132, 4851984), (144, 4447652), (176, 3638988), (192, 3335739), (198, 3234656), (264, 2425992), (271, 2363328), (288, 2223826), (352, 1819494), (373, 1717056), (396, 1617328), (528, 1212996), (542, 1181664), (576, 1111913), (704, 909747), (746, 858528), (792, 808664), (813, 787776), (1056, 606498), (1084, 590832), (1119, 572352), (1492, 429264), (1584, 404332), (1626, 393888), (2112, 303249), (2168, 295416), (2238, 286176), (2439, 262592), (2981, 214848), (2984, 214632), (3168, 202166), (3252, 196944), (3357, 190784), (4103, 156096), (4336, 147708), (4476, 143088), (4878, 131296), (5962, 107424), (5968, 107316), (6336, 101083), (6504, 98472), (6714, 95392), (8206, 78048), (8672, 73854), (8943, 71616), (8952, 71544), (9756, 65648), (11924, 53712), (11936, 53658), (12309, 52032), (13008, 49236), (13428, 47696), (16412, 39024), (17344, 36927), (17886, 35808), (17904, 35772), (19512, 32824), (23848, 26856), (23872, 26829), (24618, 26016)]