247679615

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1\times {\mathrm{179}}^1$

素因数の和:407

約数の個数: 32

約数和(自身を含む): 315187200

約数和(自身を除く): 67507585

約数列:

[1, 5, 31, 79, 113, 155, 179, 395, 565, 895, 2449, 3503, 5549, 8927, 12245, 14141, 17515, 20227, 27745, 44635, 70705, 101135, 276737, 438371, 627037, 1383685, 1597933, 2191855, 3135185, 7989665, 49535923, 247679615]

約数ペア:

[(1, 247679615), (5, 49535923), (31, 7989665), (79, 3135185), (113, 2191855), (155, 1597933), (179, 1383685), (395, 627037), (565, 438371), (895, 276737), (2449, 101135), (3503, 70705), (5549, 44635), (8927, 27745), (12245, 20227), (14141, 17515)]