81445364

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{20341}}^1$

素因数の和:20376

約数の個数: 48

約数和(自身を含む): 191377536

約数和(自身を除く): 109932172

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 182, 286, 308, 364, 572, 1001, 2002, 4004, 20341, 40682, 81364, 142387, 223751, 264433, 284774, 447502, 528866, 569548, 895004, 1057732, 1566257, 1851031, 2908763, 3132514, 3702062, 5817526, 6265028, 7404124, 11635052, 20361341, 40722682, 81445364]

約数ペア:

[(1, 81445364), (2, 40722682), (4, 20361341), (7, 11635052), (11, 7404124), (13, 6265028), (14, 5817526), (22, 3702062), (26, 3132514), (28, 2908763), (44, 1851031), (52, 1566257), (77, 1057732), (91, 895004), (143, 569548), (154, 528866), (182, 447502), (286, 284774), (308, 264433), (364, 223751), (572, 142387), (1001, 81364), (2002, 40682), (4004, 20341)]