13439720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{6857}}^1$

素因数の和:6882

約数の個数: 48

約数和(自身を含む): 35181540

約数和(自身を除く): 21741820

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 6857, 13714, 27428, 34285, 47999, 54856, 68570, 95998, 137140, 191996, 239995, 274280, 335993, 383992, 479990, 671986, 959980, 1343972, 1679965, 1919960, 2687944, 3359930, 6719860, 13439720]

約数ペア:

[(1, 13439720), (2, 6719860), (4, 3359930), (5, 2687944), (7, 1919960), (8, 1679965), (10, 1343972), (14, 959980), (20, 671986), (28, 479990), (35, 383992), (40, 335993), (49, 274280), (56, 239995), (70, 191996), (98, 137140), (140, 95998), (196, 68570), (245, 54856), (280, 47999), (392, 34285), (490, 27428), (980, 13714), (1960, 6857)]