66710020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{256577}}^1$

素因数の和:256599

約数の個数: 24

約数和(自身を含む): 150867864

約数和(自身を除く): 84157844

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 256577, 513154, 1026308, 1282885, 2565770, 3335501, 5131540, 6671002, 13342004, 16677505, 33355010, 66710020]

約数ペア:

[(1, 66710020), (2, 33355010), (4, 16677505), (5, 13342004), (10, 6671002), (13, 5131540), (20, 3335501), (26, 2565770), (52, 1282885), (65, 1026308), (130, 513154), (260, 256577)]