20681140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{44959}}^1$

素因数の和:44991

約数の個数: 24

約数和(自身を含む): 45319680

約数和(自身を除く): 24638540

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 44959, 89918, 179836, 224795, 449590, 899180, 1034057, 2068114, 4136228, 5170285, 10340570, 20681140]

約数ペア:

[(1, 20681140), (2, 10340570), (4, 5170285), (5, 4136228), (10, 2068114), (20, 1034057), (23, 899180), (46, 449590), (92, 224795), (115, 179836), (230, 89918), (460, 44959)]