20804956265

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{709}}^1\times {\mathrm{1289}}^1$

素因数の和:2189

約数の個数: 32

約数和(自身を含む): 26048196000

約数和(自身を除く): 5243239735

約数列:

[1, 5, 29, 145, 157, 709, 785, 1289, 3545, 4553, 6445, 20561, 22765, 37381, 102805, 111313, 186905, 202373, 556565, 913901, 1011865, 3228077, 4569505, 5868817, 16140385, 26503129, 29344085, 132515645, 143482457, 717412285, 4160991253, 20804956265]

約数ペア:

[(1, 20804956265), (5, 4160991253), (29, 717412285), (145, 143482457), (157, 132515645), (709, 29344085), (785, 26503129), (1289, 16140385), (3545, 5868817), (4553, 4569505), (6445, 3228077), (20561, 1011865), (22765, 913901), (37381, 556565), (102805, 202373), (111313, 186905)]