20659890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{23747}}^1$

素因数の和:23786

約数の個数: 32

約数和(自身を含む): 51295680

約数和(自身を除く): 30635790

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435, 870, 23747, 47494, 71241, 118735, 142482, 237470, 356205, 688663, 712410, 1377326, 2065989, 3443315, 4131978, 6886630, 10329945, 20659890]

約数ペア:

[(1, 20659890), (2, 10329945), (3, 6886630), (5, 4131978), (6, 3443315), (10, 2065989), (15, 1377326), (29, 712410), (30, 688663), (58, 356205), (87, 237470), (145, 142482), (174, 118735), (290, 71241), (435, 47494), (870, 23747)]