81994768

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{70201}}^1$

素因数の和:70282

約数の個数: 20

約数和(自身を含む): 161043388

約数和(自身を除く): 79048620

約数列:

[1, 2, 4, 8, 16, 73, 146, 292, 584, 1168, 70201, 140402, 280804, 561608, 1123216, 5124673, 10249346, 20498692, 40997384, 81994768]

約数ペア:

[(1, 81994768), (2, 40997384), (4, 20498692), (8, 10249346), (16, 5124673), (73, 1123216), (146, 561608), (292, 280804), (584, 140402), (1168, 70201)]