120639020

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{55339}}^1$

素因数の和:55457

約数の個数: 24

約数和(自身を含む): 255670800

約数和(自身を除く): 135031780

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 55339, 110678, 221356, 276695, 553390, 1106780, 6031951, 12063902, 24127804, 30159755, 60319510, 120639020]

約数ペア:

[(1, 120639020), (2, 60319510), (4, 30159755), (5, 24127804), (10, 12063902), (20, 6031951), (109, 1106780), (218, 553390), (436, 276695), (545, 221356), (1090, 110678), (2180, 55339)]