30318440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{17627}}^1$

素因数の和:17681

約数の個数: 32

約数和(自身を含む): 69806880

約数和(自身を除く): 39488440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 17627, 35254, 70508, 88135, 141016, 176270, 352540, 705080, 757961, 1515922, 3031844, 3789805, 6063688, 7579610, 15159220, 30318440]

約数ペア:

[(1, 30318440), (2, 15159220), (4, 7579610), (5, 6063688), (8, 3789805), (10, 3031844), (20, 1515922), (40, 757961), (43, 705080), (86, 352540), (172, 176270), (215, 141016), (344, 88135), (430, 70508), (860, 35254), (1720, 17627)]