30809720

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{2207}}^1$

素因数の和:2567

約数の個数: 32

約数和(自身を含む): 69552000

約数和(自身を除く): 38742280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 698, 1396, 1745, 2207, 2792, 3490, 4414, 6980, 8828, 11035, 13960, 17656, 22070, 44140, 88280, 770243, 1540486, 3080972, 3851215, 6161944, 7702430, 15404860, 30809720]

約数ペア:

[(1, 30809720), (2, 15404860), (4, 7702430), (5, 6161944), (8, 3851215), (10, 3080972), (20, 1540486), (40, 770243), (349, 88280), (698, 44140), (1396, 22070), (1745, 17656), (2207, 13960), (2792, 11035), (3490, 8828), (4414, 6980)]