20512781504

素因数分解:

$2^6\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{71719}}^1$

素因数の和:71881

約数の個数: 56

約数和(自身を含む): 42080992800

約数和(自身を除く): 21568211296

約数列:

[1, 2, 4, 8, 16, 32, 41, 64, 82, 109, 164, 218, 328, 436, 656, 872, 1312, 1744, 2624, 3488, 4469, 6976, 8938, 17876, 35752, 71504, 71719, 143008, 143438, 286016, 286876, 573752, 1147504, 2295008, 2940479, 4590016, 5880958, 7817371, 11761916, 15634742, 23523832, 31269484, 47047664, 62538968, 94095328, 125077936, 188190656, 250155872, 320512211, 500311744, 641024422, 1282048844, 2564097688, 5128195376, 10256390752, 20512781504]

約数ペア:

[(1, 20512781504), (2, 10256390752), (4, 5128195376), (8, 2564097688), (16, 1282048844), (32, 641024422), (41, 500311744), (64, 320512211), (82, 250155872), (109, 188190656), (164, 125077936), (218, 94095328), (328, 62538968), (436, 47047664), (656, 31269484), (872, 23523832), (1312, 15634742), (1744, 11761916), (2624, 7817371), (3488, 5880958), (4469, 4590016), (6976, 2940479), (8938, 2295008), (17876, 1147504), (35752, 573752), (71504, 286876), (71719, 286016), (143008, 143438)]