255321780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{607909}}^1$

素因数の和:607928

約数の個数: 48

約数和(自身を含む): 817031040

約数和(自身を除く): 561709260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 607909, 1215818, 1823727, 2431636, 3039545, 3647454, 4255363, 6079090, 7294908, 8510726, 9118635, 12158180, 12766089, 17021452, 18237270, 21276815, 25532178, 36474540, 42553630, 51064356, 63830445, 85107260, 127660890, 255321780]

約数ペア:

[(1, 255321780), (2, 127660890), (3, 85107260), (4, 63830445), (5, 51064356), (6, 42553630), (7, 36474540), (10, 25532178), (12, 21276815), (14, 18237270), (15, 17021452), (20, 12766089), (21, 12158180), (28, 9118635), (30, 8510726), (35, 7294908), (42, 6079090), (60, 4255363), (70, 3647454), (84, 3039545), (105, 2431636), (140, 1823727), (210, 1215818), (420, 607909)]