77797540

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{54787}}^1$

素因数の和:54867

約数の個数: 24

約数和(自身を含む): 165678912

約数和(自身を除く): 87881372

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 54787, 109574, 219148, 273935, 547870, 1095740, 3889877, 7779754, 15559508, 19449385, 38898770, 77797540]

約数ペア:

[(1, 77797540), (2, 38898770), (4, 19449385), (5, 15559508), (10, 7779754), (20, 3889877), (71, 1095740), (142, 547870), (284, 273935), (355, 219148), (710, 109574), (1420, 54787)]