131140

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:171

約数の個数: 24

約数和(自身を含む): 282240

約数和(自身を除く): 151100

約数列:

[1, 2, 4, 5, 10, 20, 79, 83, 158, 166, 316, 332, 395, 415, 790, 830, 1580, 1660, 6557, 13114, 26228, 32785, 65570, 131140]

約数ペア:

[(1, 131140), (2, 65570), (4, 32785), (5, 26228), (10, 13114), (20, 6557), (79, 1660), (83, 1580), (158, 830), (166, 790), (316, 415), (332, 395)]