28419755

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{8923}}^1$

素因数の和:8955

約数の個数: 24

約数和(自身を含む): 42728112

約数和(自身を除く): 14308357

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3185, 8923, 44615, 62461, 115999, 312305, 437227, 579995, 811993, 2186135, 4059965, 5683951, 28419755]

約数ペア:

[(1, 28419755), (5, 5683951), (7, 4059965), (13, 2186135), (35, 811993), (49, 579995), (65, 437227), (91, 312305), (245, 115999), (455, 62461), (637, 44615), (3185, 8923)]