20302165

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{967}}^1$

素因数の和:1021

約数の個数: 32

約数和(自身を含む): 29272320

約数和(自身を除く): 8970155

約数列:

[1, 5, 13, 17, 19, 65, 85, 95, 221, 247, 323, 967, 1105, 1235, 1615, 4199, 4835, 12571, 16439, 18373, 20995, 62855, 82195, 91865, 213707, 238849, 312341, 1068535, 1194245, 1561705, 4060433, 20302165]

約数ペア:

[(1, 20302165), (5, 4060433), (13, 1561705), (17, 1194245), (19, 1068535), (65, 312341), (85, 238849), (95, 213707), (221, 91865), (247, 82195), (323, 62855), (967, 20995), (1105, 18373), (1235, 16439), (1615, 12571), (4199, 4835)]