68139520

素因数分解:

$2^9\times 5^1\times {\mathrm{43}}^1\times {\mathrm{619}}^1$

素因数の和:685

約数の個数: 80

約数和(自身を含む): 167444640

約数和(自身を除く): 99305120

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, 619, 640, 688, 860, 1238, 1280, 1376, 1720, 2476, 2560, 2752, 3095, 3440, 4952, 5504, 6190, 6880, 9904, 11008, 12380, 13760, 19808, 22016, 24760, 26617, 27520, 39616, 49520, 53234, 55040, 79232, 99040, 106468, 110080, 133085, 158464, 198080, 212936, 266170, 316928, 396160, 425872, 532340, 792320, 851744, 1064680, 1584640, 1703488, 2129360, 3406976, 4258720, 6813952, 8517440, 13627904, 17034880, 34069760, 68139520]

約数ペア:

[(1, 68139520), (2, 34069760), (4, 17034880), (5, 13627904), (8, 8517440), (10, 6813952), (16, 4258720), (20, 3406976), (32, 2129360), (40, 1703488), (43, 1584640), (64, 1064680), (80, 851744), (86, 792320), (128, 532340), (160, 425872), (172, 396160), (215, 316928), (256, 266170), (320, 212936), (344, 198080), (430, 158464), (512, 133085), (619, 110080), (640, 106468), (688, 99040), (860, 79232), (1238, 55040), (1280, 53234), (1376, 49520), (1720, 39616), (2476, 27520), (2560, 26617), (2752, 24760), (3095, 22016), (3440, 19808), (4952, 13760), (5504, 12380), (6190, 11008), (6880, 9904)]