20421036665

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{409}}^1\times {\mathrm{3083}}^1$

素因数の和:3617

約数の個数: 32

約数和(自身を含む): 25491110400

約数和(自身を除く): 5070073735

約数列:

[1, 5, 41, 79, 205, 395, 409, 2045, 3083, 3239, 15415, 16195, 16769, 32311, 83845, 126403, 161555, 243557, 632015, 1217785, 1260947, 1324751, 6304735, 6623755, 9985837, 49929185, 51698827, 99614813, 258494135, 498074065, 4084207333, 20421036665]

約数ペア:

[(1, 20421036665), (5, 4084207333), (41, 498074065), (79, 258494135), (205, 99614813), (395, 51698827), (409, 49929185), (2045, 9985837), (3083, 6623755), (3239, 6304735), (15415, 1324751), (16195, 1260947), (16769, 1217785), (32311, 632015), (83845, 243557), (126403, 161555)]