20038405

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{1069}}^1$

素因数の和:1260

約数の個数: 16

約数和(自身を含む): 25269120

約数和(自身を除く): 5230715

約数列:

[1, 5, 23, 115, 163, 815, 1069, 3749, 5345, 18745, 24587, 122935, 174247, 871235, 4007681, 20038405]

約数ペア:

[(1, 20038405), (5, 4007681), (23, 871235), (115, 174247), (163, 122935), (815, 24587), (1069, 18745), (3749, 5345)]