218398720

素因数分解:

$2^{15}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:109

約数の個数: 128

約数和(自身を含む): 553639680

約数和(自身を除く): 335240960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 43, 62, 64, 80, 86, 124, 128, 155, 160, 172, 215, 248, 256, 310, 320, 344, 430, 496, 512, 620, 640, 688, 860, 992, 1024, 1240, 1280, 1333, 1376, 1720, 1984, 2048, 2480, 2560, 2666, 2752, 3440, 3968, 4096, 4960, 5120, 5332, 5504, 6665, 6880, 7936, 8192, 9920, 10240, 10664, 11008, 13330, 13760, 15872, 16384, 19840, 20480, 21328, 22016, 26660, 27520, 31744, 32768, 39680, 40960, 42656, 44032, 53320, 55040, 63488, 79360, 81920, 85312, 88064, 106640, 110080, 126976, 158720, 163840, 170624, 176128, 213280, 220160, 253952, 317440, 341248, 352256, 426560, 440320, 507904, 634880, 682496, 704512, 853120, 880640, 1015808, 1269760, 1364992, 1409024, 1706240, 1761280, 2539520, 2729984, 3412480, 3522560, 5079040, 5459968, 6824960, 7045120, 10919936, 13649920, 21839872, 27299840, 43679744, 54599680, 109199360, 218398720]

約数ペア:

[(1, 218398720), (2, 109199360), (4, 54599680), (5, 43679744), (8, 27299840), (10, 21839872), (16, 13649920), (20, 10919936), (31, 7045120), (32, 6824960), (40, 5459968), (43, 5079040), (62, 3522560), (64, 3412480), (80, 2729984), (86, 2539520), (124, 1761280), (128, 1706240), (155, 1409024), (160, 1364992), (172, 1269760), (215, 1015808), (248, 880640), (256, 853120), (310, 704512), (320, 682496), (344, 634880), (430, 507904), (496, 440320), (512, 426560), (620, 352256), (640, 341248), (688, 317440), (860, 253952), (992, 220160), (1024, 213280), (1240, 176128), (1280, 170624), (1333, 163840), (1376, 158720), (1720, 126976), (1984, 110080), (2048, 106640), (2480, 88064), (2560, 85312), (2666, 81920), (2752, 79360), (3440, 63488), (3968, 55040), (4096, 53320), (4960, 44032), (5120, 42656), (5332, 40960), (5504, 39680), (6665, 32768), (6880, 31744), (7936, 27520), (8192, 26660), (9920, 22016), (10240, 21328), (10664, 20480), (11008, 19840), (13330, 16384), (13760, 15872)]