20790721325

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{797}}^1\times {\mathrm{3271}}^1$

素因数の和:4118

約数の個数: 48

約数和(自身を含む): 29139384960

約数和(自身を除く): 8348663635

約数列:

[1, 5, 11, 25, 29, 55, 145, 275, 319, 725, 797, 1595, 3271, 3985, 7975, 8767, 16355, 19925, 23113, 35981, 43835, 81775, 94859, 115565, 179905, 219175, 254243, 474295, 577825, 899525, 1043449, 1271215, 2371475, 2606987, 5217245, 6356075, 13034935, 26086225, 28676857, 65174675, 75602623, 143384285, 378013115, 716921425, 831628853, 1890065575, 4158144265, 20790721325]

約数ペア:

[(1, 20790721325), (5, 4158144265), (11, 1890065575), (25, 831628853), (29, 716921425), (55, 378013115), (145, 143384285), (275, 75602623), (319, 65174675), (725, 28676857), (797, 26086225), (1595, 13034935), (3271, 6356075), (3985, 5217245), (7975, 2606987), (8767, 2371475), (16355, 1271215), (19925, 1043449), (23113, 899525), (35981, 577825), (43835, 474295), (81775, 254243), (94859, 219175), (115565, 179905)]