218671490

素因数分解:

$2^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{42961}}^1$

素因数の和:43477

約数の個数: 16

約数和(自身を含む): 394391160

約数和(自身を除く): 175719670

約数列:

[1, 2, 5, 10, 509, 1018, 2545, 5090, 42961, 85922, 214805, 429610, 21867149, 43734298, 109335745, 218671490]

約数ペア:

[(1, 218671490), (2, 109335745), (5, 43734298), (10, 21867149), (509, 429610), (1018, 214805), (2545, 85922), (5090, 42961)]