217634840

素因数分解:

$2^3\times 5^1\times {\mathrm{5440871}}^1$

素因数の和:5440882

約数の個数: 16

約数和(自身を含む): 489678480

約数和(自身を除く): 272043640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5440871, 10881742, 21763484, 27204355, 43526968, 54408710, 108817420, 217634840]

約数ペア:

[(1, 217634840), (2, 108817420), (4, 54408710), (5, 43526968), (8, 27204355), (10, 21763484), (20, 10881742), (40, 5440871)]