20512957556

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1943251}}^1$

素因数の和:1943304

約数の個数: 48

約数和(自身を含む): 45705287040

約数和(自身を除く): 25192329484

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 29, 52, 58, 91, 116, 182, 203, 364, 377, 406, 754, 812, 1508, 2639, 5278, 10556, 1943251, 3886502, 7773004, 13602757, 25262263, 27205514, 50524526, 54411028, 56354279, 101049052, 112708558, 176835841, 225417116, 353671682, 394479953, 707343364, 732605627, 788959906, 1465211254, 1577919812, 2930422508, 5128239389, 10256478778, 20512957556]

約数ペア:

[(1, 20512957556), (2, 10256478778), (4, 5128239389), (7, 2930422508), (13, 1577919812), (14, 1465211254), (26, 788959906), (28, 732605627), (29, 707343364), (52, 394479953), (58, 353671682), (91, 225417116), (116, 176835841), (182, 112708558), (203, 101049052), (364, 56354279), (377, 54411028), (406, 50524526), (754, 27205514), (812, 25262263), (1508, 13602757), (2639, 7773004), (5278, 3886502), (10556, 1943251)]