31878912

素因数分解:

$2^8\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:166

約数の個数: 144

約数和(自身を含む): 95234048

約数和(自身を除く): 63355136

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 31, 32, 39, 48, 52, 62, 64, 78, 93, 96, 103, 104, 124, 128, 156, 186, 192, 206, 208, 248, 256, 309, 312, 372, 384, 403, 412, 416, 496, 618, 624, 744, 768, 806, 824, 832, 992, 1209, 1236, 1248, 1339, 1488, 1612, 1648, 1664, 1984, 2418, 2472, 2496, 2678, 2976, 3193, 3224, 3296, 3328, 3968, 4017, 4836, 4944, 4992, 5356, 5952, 6386, 6448, 6592, 7936, 8034, 9579, 9672, 9888, 9984, 10712, 11904, 12772, 12896, 13184, 16068, 19158, 19344, 19776, 21424, 23808, 25544, 25792, 26368, 32136, 38316, 38688, 39552, 41509, 42848, 51088, 51584, 64272, 76632, 77376, 79104, 83018, 85696, 102176, 103168, 124527, 128544, 153264, 154752, 166036, 171392, 204352, 249054, 257088, 306528, 309504, 332072, 342784, 408704, 498108, 514176, 613056, 664144, 817408, 996216, 1028352, 1226112, 1328288, 1992432, 2452224, 2656576, 3984864, 5313152, 7969728, 10626304, 15939456, 31878912]

約数ペア:

[(1, 31878912), (2, 15939456), (3, 10626304), (4, 7969728), (6, 5313152), (8, 3984864), (12, 2656576), (13, 2452224), (16, 1992432), (24, 1328288), (26, 1226112), (31, 1028352), (32, 996216), (39, 817408), (48, 664144), (52, 613056), (62, 514176), (64, 498108), (78, 408704), (93, 342784), (96, 332072), (103, 309504), (104, 306528), (124, 257088), (128, 249054), (156, 204352), (186, 171392), (192, 166036), (206, 154752), (208, 153264), (248, 128544), (256, 124527), (309, 103168), (312, 102176), (372, 85696), (384, 83018), (403, 79104), (412, 77376), (416, 76632), (496, 64272), (618, 51584), (624, 51088), (744, 42848), (768, 41509), (806, 39552), (824, 38688), (832, 38316), (992, 32136), (1209, 26368), (1236, 25792), (1248, 25544), (1339, 23808), (1488, 21424), (1612, 19776), (1648, 19344), (1664, 19158), (1984, 16068), (2418, 13184), (2472, 12896), (2496, 12772), (2678, 11904), (2976, 10712), (3193, 9984), (3224, 9888), (3296, 9672), (3328, 9579), (3968, 8034), (4017, 7936), (4836, 6592), (4944, 6448), (4992, 6386), (5356, 5952)]