28990885

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{293}}^1$

素因数の和:573

約数の個数: 32

約数和(自身を含む): 43690752

約数和(自身を除く): 14699867

約数列:

[1, 5, 7, 11, 35, 55, 77, 257, 293, 385, 1285, 1465, 1799, 2051, 2827, 3223, 8995, 10255, 14135, 16115, 19789, 22561, 75301, 98945, 112805, 376505, 527107, 828311, 2635535, 4141555, 5798177, 28990885]

約数ペア:

[(1, 28990885), (5, 5798177), (7, 4141555), (11, 2635535), (35, 828311), (55, 527107), (77, 376505), (257, 112805), (293, 98945), (385, 75301), (1285, 22561), (1465, 19789), (1799, 16115), (2051, 14135), (2827, 10255), (3223, 8995)]