28678960

素因数分解:

$2^4\times 5^1\times {\mathrm{358487}}^1$

素因数の和:358500

約数の個数: 20

約数和(自身を含む): 66678768

約数和(自身を除く): 37999808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 358487, 716974, 1433948, 1792435, 2867896, 3584870, 5735792, 7169740, 14339480, 28678960]

約数ペア:

[(1, 28678960), (2, 14339480), (4, 7169740), (5, 5735792), (8, 3584870), (10, 2867896), (16, 1792435), (20, 1433948), (40, 716974), (80, 358487)]