20565884416

素因数分解:

$2^9\times 7^1\times {\mathrm{11}}^1\times {\mathrm{521659}}^1$

素因数の和:521695

約数の個数: 80

約数和(自身を含む): 51231185280

約数和(自身を除く): 30665300864

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 64, 77, 88, 112, 128, 154, 176, 224, 256, 308, 352, 448, 512, 616, 704, 896, 1232, 1408, 1792, 2464, 2816, 3584, 4928, 5632, 9856, 19712, 39424, 521659, 1043318, 2086636, 3651613, 4173272, 5738249, 7303226, 8346544, 11476498, 14606452, 16693088, 22952996, 29212904, 33386176, 40167743, 45905992, 58425808, 66772352, 80335486, 91811984, 116851616, 133544704, 160670972, 183623968, 233703232, 267089408, 321341944, 367247936, 467406464, 642683888, 734495872, 934812928, 1285367776, 1468991744, 1869625856, 2570735552, 2937983488, 5141471104, 10282942208, 20565884416]

約数ペア:

[(1, 20565884416), (2, 10282942208), (4, 5141471104), (7, 2937983488), (8, 2570735552), (11, 1869625856), (14, 1468991744), (16, 1285367776), (22, 934812928), (28, 734495872), (32, 642683888), (44, 467406464), (56, 367247936), (64, 321341944), (77, 267089408), (88, 233703232), (112, 183623968), (128, 160670972), (154, 133544704), (176, 116851616), (224, 91811984), (256, 80335486), (308, 66772352), (352, 58425808), (448, 45905992), (512, 40167743), (616, 33386176), (704, 29212904), (896, 22952996), (1232, 16693088), (1408, 14606452), (1792, 11476498), (2464, 8346544), (2816, 7303226), (3584, 5738249), (4928, 4173272), (5632, 3651613), (9856, 2086636), (19712, 1043318), (39424, 521659)]