20280702

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{260009}}^1$

素因数の和:260027

約数の個数: 16

約数和(自身を含む): 43681680

約数和(自身を除く): 23400978

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 260009, 520018, 780027, 1560054, 3380117, 6760234, 10140351, 20280702]

約数ペア:

[(1, 20280702), (2, 10140351), (3, 6760234), (6, 3380117), (13, 1560054), (26, 780027), (39, 520018), (78, 260009)]