49644531280

素因数分解:

$2^4\times 5^1\times {\mathrm{620556641}}^1$

素因数の和:620556654

約数の個数: 20

約数和(自身を含む): 115423535412

約数和(自身を除く): 65779004132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 620556641, 1241113282, 2482226564, 3102783205, 4964453128, 6205566410, 9928906256, 12411132820, 24822265640, 49644531280]

約数ペア:

[(1, 49644531280), (2, 24822265640), (4, 12411132820), (5, 9928906256), (8, 6205566410), (10, 4964453128), (16, 3102783205), (20, 2482226564), (40, 1241113282), (80, 620556641)]