1216406020

素因数分解:

$2^2\times 5^1\times {\mathrm{1291}}^1\times {\mathrm{47111}}^1$

素因数の和:48411

約数の個数: 24

約数和(自身を含む): 2556485568

約数和(自身を除く): 1340079548

約数列:

[1, 2, 4, 5, 10, 20, 1291, 2582, 5164, 6455, 12910, 25820, 47111, 94222, 188444, 235555, 471110, 942220, 60820301, 121640602, 243281204, 304101505, 608203010, 1216406020]

約数ペア:

[(1, 1216406020), (2, 608203010), (4, 304101505), (5, 243281204), (10, 121640602), (20, 60820301), (1291, 942220), (2582, 471110), (5164, 235555), (6455, 188444), (12910, 94222), (25820, 47111)]