281292928

素因数分解:

$2^7\times 7^3\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:227

約数の個数: 128

約数和(自身を含む): 673200000

約数和(自身を除く): 391907072

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 49, 56, 64, 86, 98, 112, 128, 149, 172, 196, 224, 298, 301, 343, 344, 392, 448, 596, 602, 686, 688, 784, 896, 1043, 1192, 1204, 1372, 1376, 1568, 2086, 2107, 2384, 2408, 2744, 2752, 3136, 4172, 4214, 4768, 4816, 5488, 5504, 6272, 6407, 7301, 8344, 8428, 9536, 9632, 10976, 12814, 14602, 14749, 16688, 16856, 19072, 19264, 21952, 25628, 29204, 29498, 33376, 33712, 38528, 43904, 44849, 51107, 51256, 58408, 58996, 66752, 67424, 89698, 102214, 102512, 116816, 117992, 133504, 134848, 179396, 204428, 205024, 233632, 235984, 269696, 313943, 358792, 408856, 410048, 467264, 471968, 627886, 717584, 817712, 820096, 934528, 943936, 1255772, 1435168, 1635424, 1887872, 2197601, 2511544, 2870336, 3270848, 4395202, 5023088, 5740672, 6541696, 8790404, 10046176, 17580808, 20092352, 35161616, 40184704, 70323232, 140646464, 281292928]

約数ペア:

[(1, 281292928), (2, 140646464), (4, 70323232), (7, 40184704), (8, 35161616), (14, 20092352), (16, 17580808), (28, 10046176), (32, 8790404), (43, 6541696), (49, 5740672), (56, 5023088), (64, 4395202), (86, 3270848), (98, 2870336), (112, 2511544), (128, 2197601), (149, 1887872), (172, 1635424), (196, 1435168), (224, 1255772), (298, 943936), (301, 934528), (343, 820096), (344, 817712), (392, 717584), (448, 627886), (596, 471968), (602, 467264), (686, 410048), (688, 408856), (784, 358792), (896, 313943), (1043, 269696), (1192, 235984), (1204, 233632), (1372, 205024), (1376, 204428), (1568, 179396), (2086, 134848), (2107, 133504), (2384, 117992), (2408, 116816), (2744, 102512), (2752, 102214), (3136, 89698), (4172, 67424), (4214, 66752), (4768, 58996), (4816, 58408), (5488, 51256), (5504, 51107), (6272, 44849), (6407, 43904), (7301, 38528), (8344, 33712), (8428, 33376), (9536, 29498), (9632, 29204), (10976, 25628), (12814, 21952), (14602, 19264), (14749, 19072), (16688, 16856)]