18528380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71263}}^1$

素因数の和:71285

約数の個数: 24

約数和(自身を含む): 41903232

約数和(自身を除く): 23374852

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 71263, 142526, 285052, 356315, 712630, 926419, 1425260, 1852838, 3705676, 4632095, 9264190, 18528380]

約数ペア:

[(1, 18528380), (2, 9264190), (4, 4632095), (5, 3705676), (10, 1852838), (13, 1425260), (20, 926419), (26, 712630), (52, 356315), (65, 285052), (130, 142526), (260, 71263)]