20280765

素因数分解:

$3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{10321}}^1$

素因数の和:10460

約数の個数: 16

約数和(自身を含む): 32700096

約数和(自身を除く): 12419331

約数列:

[1, 3, 5, 15, 131, 393, 655, 1965, 10321, 30963, 51605, 154815, 1352051, 4056153, 6760255, 20280765]

約数ペア:

[(1, 20280765), (3, 6760255), (5, 4056153), (15, 1352051), (131, 154815), (393, 51605), (655, 30963), (1965, 10321)]