20790787624

素因数分解:

$2^3\times {\mathrm{23}}^2\times {\mathrm{61}}^1\times {\mathrm{80537}}^1$

素因数の和:80650

約数の個数: 48

約数和(自身を含む): 41419888020

約数和(自身を除く): 20629100396

約数列:

[1, 2, 4, 8, 23, 46, 61, 92, 122, 184, 244, 488, 529, 1058, 1403, 2116, 2806, 4232, 5612, 11224, 32269, 64538, 80537, 129076, 161074, 258152, 322148, 644296, 1852351, 3704702, 4912757, 7409404, 9825514, 14818808, 19651028, 39302056, 42604073, 85208146, 112993411, 170416292, 225986822, 340832584, 451973644, 903947288, 2598848453, 5197696906, 10395393812, 20790787624]

約数ペア:

[(1, 20790787624), (2, 10395393812), (4, 5197696906), (8, 2598848453), (23, 903947288), (46, 451973644), (61, 340832584), (92, 225986822), (122, 170416292), (184, 112993411), (244, 85208146), (488, 42604073), (529, 39302056), (1058, 19651028), (1403, 14818808), (2116, 9825514), (2806, 7409404), (4232, 4912757), (5612, 3704702), (11224, 1852351), (32269, 644296), (64538, 322148), (80537, 258152), (129076, 161074)]