47721290

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{43781}}^1$

素因数の和:43897

約数の個数: 16

約数和(自身を含む): 86688360

約数和(自身を除く): 38967070

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 43781, 87562, 218905, 437810, 4772129, 9544258, 23860645, 47721290]

約数ペア:

[(1, 47721290), (2, 23860645), (5, 9544258), (10, 4772129), (109, 437810), (218, 218905), (545, 87562), (1090, 43781)]