319467440

素因数分解:

$2^4\times 5^1\times {\mathrm{3993343}}^1$

素因数の和:3993356

約数の個数: 20

約数和(自身を含む): 742761984

約数和(自身を除く): 423294544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3993343, 7986686, 15973372, 19966715, 31946744, 39933430, 63893488, 79866860, 159733720, 319467440]

約数ペア:

[(1, 319467440), (2, 159733720), (4, 79866860), (5, 63893488), (8, 39933430), (10, 31946744), (16, 19966715), (20, 15973372), (40, 7986686), (80, 3993343)]