168903814220

素因数分解:

$2^2\times 5^1\times {\mathrm{8445190711}}^1$

素因数の和:8445190720

約数の個数: 12

約数和(自身を含む): 354698009904

約数和(自身を除く): 185794195684

約数列:

[1, 2, 4, 5, 10, 20, 8445190711, 16890381422, 33780762844, 42225953555, 84451907110, 168903814220]

約数ペア:

[(1, 168903814220), (2, 84451907110), (4, 42225953555), (5, 33780762844), (10, 16890381422), (20, 8445190711)]