13820025

素因数分解:

$3^1\times 5^2\times {\mathrm{103}}^1\times {\mathrm{1789}}^1$

素因数の和:1905

約数の個数: 24

約数和(自身を含む): 23083840

約数和(自身を除く): 9263815

約数列:

[1, 3, 5, 15, 25, 75, 103, 309, 515, 1545, 1789, 2575, 5367, 7725, 8945, 26835, 44725, 134175, 184267, 552801, 921335, 2764005, 4606675, 13820025]

約数ペア:

[(1, 13820025), (3, 4606675), (5, 2764005), (15, 921335), (25, 552801), (75, 184267), (103, 134175), (309, 44725), (515, 26835), (1545, 8945), (1789, 7725), (2575, 5367)]