142790

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:247

約数の個数: 16

約数和(自身を含む): 261360

約数和(自身を除く): 118570

約数列:

[1, 2, 5, 10, 109, 131, 218, 262, 545, 655, 1090, 1310, 14279, 28558, 71395, 142790]

約数ペア:

[(1, 142790), (2, 71395), (5, 28558), (10, 14279), (109, 1310), (131, 1090), (218, 655), (262, 545)]