438649340

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{160091}}^1$

素因数の和:160237

約数の個数: 24

約数和(自身を含む): 927893232

約数和(自身を除く): 489243892

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 160091, 320182, 640364, 800455, 1600910, 3201820, 21932467, 43864934, 87729868, 109662335, 219324670, 438649340]

約数ペア:

[(1, 438649340), (2, 219324670), (4, 109662335), (5, 87729868), (10, 43864934), (20, 21932467), (137, 3201820), (274, 1600910), (548, 800455), (685, 640364), (1370, 320182), (2740, 160091)]