81556018

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1\times {\mathrm{311}}^1$

素因数の和:502

約数の個数: 32

約数和(自身を含む): 132387840

約数和(自身を除く): 50831822

約数列:

[1, 2, 19, 38, 67, 103, 134, 206, 311, 622, 1273, 1957, 2546, 3914, 5909, 6901, 11818, 13802, 20837, 32033, 41674, 64066, 131119, 262238, 395903, 608627, 791806, 1217254, 2146211, 4292422, 40778009, 81556018]

約数ペア:

[(1, 81556018), (2, 40778009), (19, 4292422), (38, 2146211), (67, 1217254), (103, 791806), (134, 608627), (206, 395903), (311, 262238), (622, 131119), (1273, 64066), (1957, 41674), (2546, 32033), (3914, 20837), (5909, 13802), (6901, 11818)]