40580818

素因数分解:

$2^1\times {\mathrm{127}}^1\times {\mathrm{197}}^1\times {\mathrm{811}}^1$

素因数の和:1137

約数の個数: 16

約数和(自身を含む): 61737984

約数和(自身を除く): 21157166

約数列:

[1, 2, 127, 197, 254, 394, 811, 1622, 25019, 50038, 102997, 159767, 205994, 319534, 20290409, 40580818]

約数ペア:

[(1, 40580818), (2, 20290409), (127, 319534), (197, 205994), (254, 159767), (394, 102997), (811, 50038), (1622, 25019)]