131875840

素因数分解:

$2^{10}\times 5^1\times {\mathrm{43}}^1\times {\mathrm{599}}^1$

素因数の和:667

約数の個数: 88

約数和(自身を含む): 324244800

約数和(自身を除く): 192368960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 256, 320, 344, 430, 512, 599, 640, 688, 860, 1024, 1198, 1280, 1376, 1720, 2396, 2560, 2752, 2995, 3440, 4792, 5120, 5504, 5990, 6880, 9584, 11008, 11980, 13760, 19168, 22016, 23960, 25757, 27520, 38336, 44032, 47920, 51514, 55040, 76672, 95840, 103028, 110080, 128785, 153344, 191680, 206056, 220160, 257570, 306688, 383360, 412112, 515140, 613376, 766720, 824224, 1030280, 1533440, 1648448, 2060560, 3066880, 3296896, 4121120, 6593792, 8242240, 13187584, 16484480, 26375168, 32968960, 65937920, 131875840]

約数ペア:

[(1, 131875840), (2, 65937920), (4, 32968960), (5, 26375168), (8, 16484480), (10, 13187584), (16, 8242240), (20, 6593792), (32, 4121120), (40, 3296896), (43, 3066880), (64, 2060560), (80, 1648448), (86, 1533440), (128, 1030280), (160, 824224), (172, 766720), (215, 613376), (256, 515140), (320, 412112), (344, 383360), (430, 306688), (512, 257570), (599, 220160), (640, 206056), (688, 191680), (860, 153344), (1024, 128785), (1198, 110080), (1280, 103028), (1376, 95840), (1720, 76672), (2396, 55040), (2560, 51514), (2752, 47920), (2995, 44032), (3440, 38336), (4792, 27520), (5120, 25757), (5504, 23960), (5990, 22016), (6880, 19168), (9584, 13760), (11008, 11980)]