66685580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{256483}}^1$

素因数の和:256505

約数の個数: 24

約数和(自身を含む): 150812592

約数和(自身を除く): 84127012

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 256483, 512966, 1025932, 1282415, 2564830, 3334279, 5129660, 6668558, 13337116, 16671395, 33342790, 66685580]

約数ペア:

[(1, 66685580), (2, 33342790), (4, 16671395), (5, 13337116), (10, 6668558), (13, 5129660), (20, 3334279), (26, 2564830), (52, 1282415), (65, 1025932), (130, 512966), (260, 256483)]