8342860

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:250

約数の個数: 48

約数和(自身を含む): 18295200

約数和(自身を除く): 9952340

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 89, 109, 172, 178, 215, 218, 356, 430, 436, 445, 545, 860, 890, 1090, 1780, 2180, 3827, 4687, 7654, 9374, 9701, 15308, 18748, 19135, 19402, 23435, 38270, 38804, 46870, 48505, 76540, 93740, 97010, 194020, 417143, 834286, 1668572, 2085715, 4171430, 8342860]

約数ペア:

[(1, 8342860), (2, 4171430), (4, 2085715), (5, 1668572), (10, 834286), (20, 417143), (43, 194020), (86, 97010), (89, 93740), (109, 76540), (172, 48505), (178, 46870), (215, 38804), (218, 38270), (356, 23435), (430, 19402), (436, 19135), (445, 18748), (545, 15308), (860, 9701), (890, 9374), (1090, 7654), (1780, 4687), (2180, 3827)]