54981980

素因数分解:

$2^2\times 5^1\times {\mathrm{661}}^1\times {\mathrm{4159}}^1$

素因数の和:4829

約数の個数: 24

約数和(自身を含む): 115664640

約数和(自身を除く): 60682660

約数列:

[1, 2, 4, 5, 10, 20, 661, 1322, 2644, 3305, 4159, 6610, 8318, 13220, 16636, 20795, 41590, 83180, 2749099, 5498198, 10996396, 13745495, 27490990, 54981980]

約数ペア:

[(1, 54981980), (2, 27490990), (4, 13745495), (5, 10996396), (10, 5498198), (20, 2749099), (661, 83180), (1322, 41590), (2644, 20795), (3305, 16636), (4159, 13220), (6610, 8318)]