204144640

素因数分解:

$2^{16}\times 5^1\times 7^1\times {\mathrm{89}}^1$

素因数の和:133

約数の個数: 136

約数和(自身を含む): 566226720

約数和(自身を除く): 362082080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 89, 112, 128, 140, 160, 178, 224, 256, 280, 320, 356, 445, 448, 512, 560, 623, 640, 712, 890, 896, 1024, 1120, 1246, 1280, 1424, 1780, 1792, 2048, 2240, 2492, 2560, 2848, 3115, 3560, 3584, 4096, 4480, 4984, 5120, 5696, 6230, 7120, 7168, 8192, 8960, 9968, 10240, 11392, 12460, 14240, 14336, 16384, 17920, 19936, 20480, 22784, 24920, 28480, 28672, 32768, 35840, 39872, 40960, 45568, 49840, 56960, 57344, 65536, 71680, 79744, 81920, 91136, 99680, 113920, 114688, 143360, 159488, 163840, 182272, 199360, 227840, 229376, 286720, 318976, 327680, 364544, 398720, 455680, 458752, 573440, 637952, 729088, 797440, 911360, 1146880, 1275904, 1458176, 1594880, 1822720, 2293760, 2551808, 2916352, 3189760, 3645440, 5103616, 5832704, 6379520, 7290880, 10207232, 12759040, 14581760, 20414464, 25518080, 29163520, 40828928, 51036160, 102072320, 204144640]

約数ペア:

[(1, 204144640), (2, 102072320), (4, 51036160), (5, 40828928), (7, 29163520), (8, 25518080), (10, 20414464), (14, 14581760), (16, 12759040), (20, 10207232), (28, 7290880), (32, 6379520), (35, 5832704), (40, 5103616), (56, 3645440), (64, 3189760), (70, 2916352), (80, 2551808), (89, 2293760), (112, 1822720), (128, 1594880), (140, 1458176), (160, 1275904), (178, 1146880), (224, 911360), (256, 797440), (280, 729088), (320, 637952), (356, 573440), (445, 458752), (448, 455680), (512, 398720), (560, 364544), (623, 327680), (640, 318976), (712, 286720), (890, 229376), (896, 227840), (1024, 199360), (1120, 182272), (1246, 163840), (1280, 159488), (1424, 143360), (1780, 114688), (1792, 113920), (2048, 99680), (2240, 91136), (2492, 81920), (2560, 79744), (2848, 71680), (3115, 65536), (3560, 57344), (3584, 56960), (4096, 49840), (4480, 45568), (4984, 40960), (5120, 39872), (5696, 35840), (6230, 32768), (7120, 28672), (7168, 28480), (8192, 24920), (8960, 22784), (9968, 20480), (10240, 19936), (11392, 17920), (12460, 16384), (14240, 14336)]