64642123

素因数分解:

$7^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:169

約数の個数: 40

約数和(自身を含む): 86270800

約数和(自身を除く): 21628677

約数列:

[1, 7, 13, 19, 49, 91, 109, 133, 247, 343, 637, 763, 931, 1417, 1729, 2071, 2401, 4459, 5341, 6517, 9919, 12103, 14497, 26923, 31213, 37387, 45619, 69433, 84721, 101479, 188461, 261709, 486031, 593047, 710353, 1319227, 3402217, 4972471, 9234589, 64642123]

約数ペア:

[(1, 64642123), (7, 9234589), (13, 4972471), (19, 3402217), (49, 1319227), (91, 710353), (109, 593047), (133, 486031), (247, 261709), (343, 188461), (637, 101479), (763, 84721), (931, 69433), (1417, 45619), (1729, 37387), (2071, 31213), (2401, 26923), (4459, 14497), (5341, 12103), (6517, 9919)]