164400509

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{311}}^1$

素因数の和:525

約数の個数: 32

約数和(自身を含む): 209803776

約数和(自身を除く): 45403267

約数列:

[1, 7, 13, 37, 91, 157, 259, 311, 481, 1099, 2041, 2177, 3367, 4043, 5809, 11507, 14287, 28301, 40663, 48827, 75517, 80549, 149591, 341789, 528619, 634751, 1047137, 1806599, 4443257, 12646193, 23485787, 164400509]

約数ペア:

[(1, 164400509), (7, 23485787), (13, 12646193), (37, 4443257), (91, 1806599), (157, 1047137), (259, 634751), (311, 528619), (481, 341789), (1099, 149591), (2041, 80549), (2177, 75517), (3367, 48827), (4043, 40663), (5809, 28301), (11507, 14287)]