1561018036

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{20539711}}^1$

素因数の和:20539734

約数の個数: 12

約数和(自身を含む): 2875559680

約数和(自身を除く): 1314541644

約数列:

[1, 2, 4, 19, 38, 76, 20539711, 41079422, 82158844, 390254509, 780509018, 1561018036]

約数ペア:

[(1, 1561018036), (2, 780509018), (4, 390254509), (19, 82158844), (38, 41079422), (76, 20539711)]