278712320

素因数分解:

$2^{12}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1$

素因数の和:499

約数の個数: 104

約数和(自身を含む): 691975680

約数和(自身を除く): 413263360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 439, 496, 512, 620, 640, 878, 992, 1024, 1240, 1280, 1756, 1984, 2048, 2195, 2480, 2560, 3512, 3968, 4096, 4390, 4960, 5120, 7024, 7936, 8780, 9920, 10240, 13609, 14048, 15872, 17560, 19840, 20480, 27218, 28096, 31744, 35120, 39680, 54436, 56192, 63488, 68045, 70240, 79360, 108872, 112384, 126976, 136090, 140480, 158720, 217744, 224768, 272180, 280960, 317440, 435488, 449536, 544360, 561920, 634880, 870976, 899072, 1088720, 1123840, 1741952, 1798144, 2177440, 2247680, 3483904, 4354880, 4495360, 6967808, 8709760, 8990720, 13935616, 17419520, 27871232, 34839040, 55742464, 69678080, 139356160, 278712320]

約数ペア:

[(1, 278712320), (2, 139356160), (4, 69678080), (5, 55742464), (8, 34839040), (10, 27871232), (16, 17419520), (20, 13935616), (31, 8990720), (32, 8709760), (40, 6967808), (62, 4495360), (64, 4354880), (80, 3483904), (124, 2247680), (128, 2177440), (155, 1798144), (160, 1741952), (248, 1123840), (256, 1088720), (310, 899072), (320, 870976), (439, 634880), (496, 561920), (512, 544360), (620, 449536), (640, 435488), (878, 317440), (992, 280960), (1024, 272180), (1240, 224768), (1280, 217744), (1756, 158720), (1984, 140480), (2048, 136090), (2195, 126976), (2480, 112384), (2560, 108872), (3512, 79360), (3968, 70240), (4096, 68045), (4390, 63488), (4960, 56192), (5120, 54436), (7024, 39680), (7936, 35120), (8780, 31744), (9920, 28096), (10240, 27218), (13609, 20480), (14048, 19840), (15872, 17560)]