20104681964

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{401}}^1\times {\mathrm{659689}}^1$

素因数の和:660113

約数の個数: 24

約数和(自身を含む): 37127353200

約数和(自身を除く): 17022671236

約数列:

[1, 2, 4, 19, 38, 76, 401, 802, 1604, 7619, 15238, 30476, 659689, 1319378, 2638756, 12534091, 25068182, 50136364, 264535289, 529070578, 1058141156, 5026170491, 10052340982, 20104681964]

約数ペア:

[(1, 20104681964), (2, 10052340982), (4, 5026170491), (19, 1058141156), (38, 529070578), (76, 264535289), (401, 50136364), (802, 25068182), (1604, 12534091), (7619, 2638756), (15238, 1319378), (30476, 659689)]