771569145

素因数分解:

$3^4\times 5^1\times {\mathrm{1905109}}^1$

素因数の和:1905126

約数の個数: 20

約数和(自身を含む): 1383109860

約数和(自身を除く): 611540715

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 1905109, 5715327, 9525545, 17145981, 28576635, 51437943, 85729905, 154313829, 257189715, 771569145]

約数ペア:

[(1, 771569145), (3, 257189715), (5, 154313829), (9, 85729905), (15, 51437943), (27, 28576635), (45, 17145981), (81, 9525545), (135, 5715327), (405, 1905109)]