7980988

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{5527}}^1$

素因数の和:5569

約数の個数: 18

約数和(自身を含む): 14743176

約数和(自身を除く): 6762188

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 5527, 11054, 22108, 105013, 210026, 420052, 1995247, 3990494, 7980988]

約数ペア:

[(1, 7980988), (2, 3990494), (4, 1995247), (19, 420052), (38, 210026), (76, 105013), (361, 22108), (722, 11054), (1444, 5527)]