20551497265

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{4002239}}^1$

素因数の和:4002336

約数の個数: 16

約数和(自身を含む): 26895052800

約数和(自身を除く): 6343555535

約数列:

[1, 5, 13, 65, 79, 395, 1027, 5135, 4002239, 20011195, 52029107, 260145535, 316176881, 1580884405, 4110299453, 20551497265]

約数ペア:

[(1, 20551497265), (5, 4110299453), (13, 1580884405), (65, 316176881), (79, 260145535), (395, 52029107), (1027, 20011195), (5135, 4002239)]