290465305

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1\times {\mathrm{691}}^1$

素因数の和:961

約数の個数: 32

約数和(自身を含む): 390620160

約数和(自身を除く): 100154855

約数列:

[1, 5, 13, 29, 65, 145, 223, 377, 691, 1115, 1885, 2899, 3455, 6467, 8983, 14495, 20039, 32335, 44915, 84071, 100195, 154093, 260507, 420355, 770465, 1302535, 2003209, 4468697, 10016045, 22343485, 58093061, 290465305]

約数ペア:

[(1, 290465305), (5, 58093061), (13, 22343485), (29, 10016045), (65, 4468697), (145, 2003209), (223, 1302535), (377, 770465), (691, 420355), (1115, 260507), (1885, 154093), (2899, 100195), (3455, 84071), (6467, 44915), (8983, 32335), (14495, 20039)]