12780284

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{4091}}^1$

素因数の和:4177

約数の個数: 24

約数和(自身を含む): 24748416

約数和(自身を除く): 11968132

約数列:

[1, 2, 4, 11, 22, 44, 71, 142, 284, 781, 1562, 3124, 4091, 8182, 16364, 45001, 90002, 180004, 290461, 580922, 1161844, 3195071, 6390142, 12780284]

約数ペア:

[(1, 12780284), (2, 6390142), (4, 3195071), (11, 1161844), (22, 580922), (44, 290461), (71, 180004), (142, 90002), (284, 45001), (781, 16364), (1562, 8182), (3124, 4091)]