11721880

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2237}}^1$

素因数の和:2379

約数の個数: 32

約数和(自身を含む): 26587440

約数和(自身を除く): 14865560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2237, 2620, 4474, 5240, 8948, 11185, 17896, 22370, 44740, 89480, 293047, 586094, 1172188, 1465235, 2344376, 2930470, 5860940, 11721880]

約数ペア:

[(1, 11721880), (2, 5860940), (4, 2930470), (5, 2344376), (8, 1465235), (10, 1172188), (20, 586094), (40, 293047), (131, 89480), (262, 44740), (524, 22370), (655, 17896), (1048, 11185), (1310, 8948), (2237, 5240), (2620, 4474)]