16979840

素因数分解:

$2^7\times 5^1\times {\mathrm{43}}^1\times {\mathrm{617}}^1$

素因数の和:679

約数の個数: 64

約数和(自身を含む): 41603760

約数和(自身を除く): 24623920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 320, 344, 430, 617, 640, 688, 860, 1234, 1376, 1720, 2468, 2752, 3085, 3440, 4936, 5504, 6170, 6880, 9872, 12340, 13760, 19744, 24680, 26531, 27520, 39488, 49360, 53062, 78976, 98720, 106124, 132655, 197440, 212248, 265310, 394880, 424496, 530620, 848992, 1061240, 1697984, 2122480, 3395968, 4244960, 8489920, 16979840]

約数ペア:

[(1, 16979840), (2, 8489920), (4, 4244960), (5, 3395968), (8, 2122480), (10, 1697984), (16, 1061240), (20, 848992), (32, 530620), (40, 424496), (43, 394880), (64, 265310), (80, 212248), (86, 197440), (128, 132655), (160, 106124), (172, 98720), (215, 78976), (320, 53062), (344, 49360), (430, 39488), (617, 27520), (640, 26531), (688, 24680), (860, 19744), (1234, 13760), (1376, 12340), (1720, 9872), (2468, 6880), (2752, 6170), (3085, 5504), (3440, 4936)]