389539745

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1\times {\mathrm{1721}}^1$

素因数の和:1985

約数の個数: 32

約数和(自身を含む): 555448320

約数和(自身を除く): 165908575

約数列:

[1, 5, 7, 29, 35, 145, 203, 223, 1015, 1115, 1561, 1721, 6467, 7805, 8605, 12047, 32335, 45269, 49909, 60235, 226345, 249545, 349363, 383783, 1746815, 1918915, 2686481, 11129707, 13432405, 55648535, 77907949, 389539745]

約数ペア:

[(1, 389539745), (5, 77907949), (7, 55648535), (29, 13432405), (35, 11129707), (145, 2686481), (203, 1918915), (223, 1746815), (1015, 383783), (1115, 349363), (1561, 249545), (1721, 226345), (6467, 60235), (7805, 49909), (8605, 45269), (12047, 32335)]