254229760

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:244

約数の個数: 144

約数和(自身を含む): 647539200

約数和(自身を除く): 393309440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 43, 62, 64, 80, 86, 124, 128, 149, 155, 160, 172, 215, 248, 256, 298, 310, 320, 344, 430, 496, 596, 620, 640, 688, 745, 860, 992, 1192, 1240, 1280, 1333, 1376, 1490, 1720, 1984, 2384, 2480, 2666, 2752, 2980, 3440, 3968, 4619, 4768, 4960, 5332, 5504, 5960, 6407, 6665, 6880, 7936, 9238, 9536, 9920, 10664, 11008, 11920, 12814, 13330, 13760, 18476, 19072, 19840, 21328, 23095, 23840, 25628, 26660, 27520, 32035, 36952, 38144, 39680, 42656, 46190, 47680, 51256, 53320, 55040, 64070, 73904, 85312, 92380, 95360, 102512, 106640, 128140, 147808, 170624, 184760, 190720, 198617, 205024, 213280, 256280, 295616, 341248, 369520, 397234, 410048, 426560, 512560, 591232, 739040, 794468, 820096, 853120, 993085, 1025120, 1182464, 1478080, 1588936, 1640192, 1706240, 1986170, 2050240, 2956160, 3177872, 3972340, 4100480, 5912320, 6355744, 7944680, 8200960, 12711488, 15889360, 25422976, 31778720, 50845952, 63557440, 127114880, 254229760]

約数ペア:

[(1, 254229760), (2, 127114880), (4, 63557440), (5, 50845952), (8, 31778720), (10, 25422976), (16, 15889360), (20, 12711488), (31, 8200960), (32, 7944680), (40, 6355744), (43, 5912320), (62, 4100480), (64, 3972340), (80, 3177872), (86, 2956160), (124, 2050240), (128, 1986170), (149, 1706240), (155, 1640192), (160, 1588936), (172, 1478080), (215, 1182464), (248, 1025120), (256, 993085), (298, 853120), (310, 820096), (320, 794468), (344, 739040), (430, 591232), (496, 512560), (596, 426560), (620, 410048), (640, 397234), (688, 369520), (745, 341248), (860, 295616), (992, 256280), (1192, 213280), (1240, 205024), (1280, 198617), (1333, 190720), (1376, 184760), (1490, 170624), (1720, 147808), (1984, 128140), (2384, 106640), (2480, 102512), (2666, 95360), (2752, 92380), (2980, 85312), (3440, 73904), (3968, 64070), (4619, 55040), (4768, 53320), (4960, 51256), (5332, 47680), (5504, 46190), (5960, 42656), (6407, 39680), (6665, 38144), (6880, 36952), (7936, 32035), (9238, 27520), (9536, 26660), (9920, 25628), (10664, 23840), (11008, 23095), (11920, 21328), (12814, 19840), (13330, 19072), (13760, 18476)]