218190890

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{276191}}^1$

素因数の和:276277

約数の個数: 16

約数和(自身を含む): 397716480

約数和(自身を除く): 179525590

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 276191, 552382, 1380955, 2761910, 21819089, 43638178, 109095445, 218190890]

約数ペア:

[(1, 218190890), (2, 109095445), (5, 43638178), (10, 21819089), (79, 2761910), (158, 1380955), (395, 552382), (790, 276191)]