81940532

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{2647}}^1$

素因数の和:2831

約数の個数: 24

約数和(自身を含む): 146805120

約数和(自身を除く): 64864588

約数列:

[1, 2, 4, 71, 109, 142, 218, 284, 436, 2647, 5294, 7739, 10588, 15478, 30956, 187937, 288523, 375874, 577046, 751748, 1154092, 20485133, 40970266, 81940532]

約数ペア:

[(1, 81940532), (2, 40970266), (4, 20485133), (71, 1154092), (109, 751748), (142, 577046), (218, 375874), (284, 288523), (436, 187937), (2647, 30956), (5294, 15478), (7739, 10588)]