128420575

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{1783}}^1$

素因数の和:1903

約数の個数: 24

約数和(自身を含む): 165469568

約数和(自身を除く): 37048993

約数列:

[1, 5, 25, 43, 67, 215, 335, 1075, 1675, 1783, 2881, 8915, 14405, 44575, 72025, 76669, 119461, 383345, 597305, 1916725, 2986525, 5136823, 25684115, 128420575]

約数ペア:

[(1, 128420575), (5, 25684115), (25, 5136823), (43, 2986525), (67, 1916725), (215, 597305), (335, 383345), (1075, 119461), (1675, 76669), (1783, 72025), (2881, 44575), (8915, 14405)]