61631480

素因数分解:

$2^3\times 5^1\times {\mathrm{1540787}}^1$

素因数の和:1540798

約数の個数: 16

約数和(自身を含む): 138670920

約数和(自身を除く): 77039440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1540787, 3081574, 6163148, 7703935, 12326296, 15407870, 30815740, 61631480]

約数ペア:

[(1, 61631480), (2, 30815740), (4, 15407870), (5, 12326296), (8, 7703935), (10, 6163148), (20, 3081574), (40, 1540787)]