648872978

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{315907}}^1$

素因数の和:316001

約数の個数: 16

約数和(自身を含む): 1061450880

約数和(自身を除く): 412577902

約数列:

[1, 2, 13, 26, 79, 158, 1027, 2054, 315907, 631814, 4106791, 8213582, 24956653, 49913306, 324436489, 648872978]

約数ペア:

[(1, 648872978), (2, 324436489), (13, 49913306), (26, 24956653), (79, 8213582), (158, 4106791), (1027, 631814), (2054, 315907)]