81317338

素因数分解:

$2^1\times {\mathrm{127}}^1\times {\mathrm{389}}^1\times {\mathrm{823}}^1$

素因数の和:1341

約数の個数: 16

約数和(自身を含む): 123402240

約数和(自身を除く): 42084902

約数列:

[1, 2, 127, 254, 389, 778, 823, 1646, 49403, 98806, 104521, 209042, 320147, 640294, 40658669, 81317338]

約数ペア:

[(1, 81317338), (2, 40658669), (127, 640294), (254, 320147), (389, 209042), (778, 104521), (823, 98806), (1646, 49403)]