2127640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1237}}^1$

素因数の和:1291

約数の個数: 32

約数和(自身を含む): 4902480

約数和(自身を除く): 2774840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1237, 1720, 2474, 4948, 6185, 9896, 12370, 24740, 49480, 53191, 106382, 212764, 265955, 425528, 531910, 1063820, 2127640]

約数ペア:

[(1, 2127640), (2, 1063820), (4, 531910), (5, 425528), (8, 265955), (10, 212764), (20, 106382), (40, 53191), (43, 49480), (86, 24740), (172, 12370), (215, 9896), (344, 6185), (430, 4948), (860, 2474), (1237, 1720)]