81184568

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{28111}}^1$

素因数の和:28155

約数の個数: 24

約数和(自身を含む): 160660080

約数和(自身を除く): 79475512

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 361, 722, 1444, 2888, 28111, 56222, 112444, 224888, 534109, 1068218, 2136436, 4272872, 10148071, 20296142, 40592284, 81184568]

約数ペア:

[(1, 81184568), (2, 40592284), (4, 20296142), (8, 10148071), (19, 4272872), (38, 2136436), (76, 1068218), (152, 534109), (361, 224888), (722, 112444), (1444, 56222), (2888, 28111)]