216221270

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{304537}}^1$

素因数の和:304615

約数の個数: 16

約数和(自身を含む): 394681248

約数和(自身を除く): 178459978

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 304537, 609074, 1522685, 3045370, 21622127, 43244254, 108110635, 216221270]

約数ペア:

[(1, 216221270), (2, 108110635), (5, 43244254), (10, 21622127), (71, 3045370), (142, 1522685), (355, 609074), (710, 304537)]