31004990

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{43669}}^1$

素因数の和:43747

約数の個数: 16

約数和(自身を含む): 56596320

約数和(自身を除く): 25591330

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 43669, 87338, 218345, 436690, 3100499, 6200998, 15502495, 31004990]

約数ペア:

[(1, 31004990), (2, 15502495), (5, 6200998), (10, 3100499), (71, 436690), (142, 218345), (355, 87338), (710, 43669)]