20178378328

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1491601}}^1$

素因数の和:1491715

約数の個数: 32

約数和(自身を含む): 40273254000

約数和(自身を除く): 20094875672

約数列:

[1, 2, 4, 8, 19, 38, 76, 89, 152, 178, 356, 712, 1691, 3382, 6764, 13528, 1491601, 2983202, 5966404, 11932808, 28340419, 56680838, 113361676, 132752489, 226723352, 265504978, 531009956, 1062019912, 2522297291, 5044594582, 10089189164, 20178378328]

約数ペア:

[(1, 20178378328), (2, 10089189164), (4, 5044594582), (8, 2522297291), (19, 1062019912), (38, 531009956), (76, 265504978), (89, 226723352), (152, 132752489), (178, 113361676), (356, 56680838), (712, 28340419), (1691, 11932808), (3382, 5966404), (6764, 2983202), (13528, 1491601)]