1781104640

素因数分解:

$2^{15}\times 5^1\times 7^1\times {\mathrm{1553}}^1$

素因数の和:1595

約数の個数: 128

約数和(自身を含む): 4888386720

約数和(自身を除く): 3107282080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 512, 560, 640, 896, 1024, 1120, 1280, 1553, 1792, 2048, 2240, 2560, 3106, 3584, 4096, 4480, 5120, 6212, 7168, 7765, 8192, 8960, 10240, 10871, 12424, 14336, 15530, 16384, 17920, 20480, 21742, 24848, 28672, 31060, 32768, 35840, 40960, 43484, 49696, 54355, 57344, 62120, 71680, 81920, 86968, 99392, 108710, 114688, 124240, 143360, 163840, 173936, 198784, 217420, 229376, 248480, 286720, 347872, 397568, 434840, 496960, 573440, 695744, 795136, 869680, 993920, 1146880, 1391488, 1590272, 1739360, 1987840, 2782976, 3180544, 3478720, 3975680, 5565952, 6361088, 6957440, 7951360, 11131904, 12722176, 13914880, 15902720, 22263808, 25444352, 27829760, 31805440, 44527616, 50888704, 55659520, 63610880, 89055232, 111319040, 127221760, 178110464, 222638080, 254443520, 356220928, 445276160, 890552320, 1781104640]

約数ペア:

[(1, 1781104640), (2, 890552320), (4, 445276160), (5, 356220928), (7, 254443520), (8, 222638080), (10, 178110464), (14, 127221760), (16, 111319040), (20, 89055232), (28, 63610880), (32, 55659520), (35, 50888704), (40, 44527616), (56, 31805440), (64, 27829760), (70, 25444352), (80, 22263808), (112, 15902720), (128, 13914880), (140, 12722176), (160, 11131904), (224, 7951360), (256, 6957440), (280, 6361088), (320, 5565952), (448, 3975680), (512, 3478720), (560, 3180544), (640, 2782976), (896, 1987840), (1024, 1739360), (1120, 1590272), (1280, 1391488), (1553, 1146880), (1792, 993920), (2048, 869680), (2240, 795136), (2560, 695744), (3106, 573440), (3584, 496960), (4096, 434840), (4480, 397568), (5120, 347872), (6212, 286720), (7168, 248480), (7765, 229376), (8192, 217420), (8960, 198784), (10240, 173936), (10871, 163840), (12424, 143360), (14336, 124240), (15530, 114688), (16384, 108710), (17920, 99392), (20480, 86968), (21742, 81920), (24848, 71680), (28672, 62120), (31060, 57344), (32768, 54355), (35840, 49696), (40960, 43484)]