255289580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{140269}}^1$

素因数の和:140298

約数の個数: 48

約数和(自身を含む): 659830080

約数和(自身を除く): 404540500

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 140269, 280538, 561076, 701345, 981883, 1402690, 1823497, 1963766, 2805380, 3646994, 3927532, 4909415, 7293988, 9117485, 9818830, 12764479, 18234970, 19637660, 25528958, 36469940, 51057916, 63822395, 127644790, 255289580]

約数ペア:

[(1, 255289580), (2, 127644790), (4, 63822395), (5, 51057916), (7, 36469940), (10, 25528958), (13, 19637660), (14, 18234970), (20, 12764479), (26, 9818830), (28, 9117485), (35, 7293988), (52, 4909415), (65, 3927532), (70, 3646994), (91, 2805380), (130, 1963766), (140, 1823497), (182, 1402690), (260, 981883), (364, 701345), (455, 561076), (910, 280538), (1820, 140269)]