20307995

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{839}}^1$

素因数の和:994

約数の個数: 16

約数和(自身を含む): 25159680

約数和(自身を除く): 4851685

約数列:

[1, 5, 47, 103, 235, 515, 839, 4195, 4841, 24205, 39433, 86417, 197165, 432085, 4061599, 20307995]

約数ペア:

[(1, 20307995), (5, 4061599), (47, 432085), (103, 197165), (235, 86417), (515, 39433), (839, 24205), (4195, 4841)]