201578975

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{47711}}^1$

素因数の和:47747

約数の個数: 18

約数和(自身を含む): 270670176

約数和(自身を除く): 69091201

約数列:

[1, 5, 13, 25, 65, 169, 325, 845, 4225, 47711, 238555, 620243, 1192775, 3101215, 8063159, 15506075, 40315795, 201578975]

約数ペア:

[(1, 201578975), (5, 40315795), (13, 15506075), (25, 8063159), (65, 3101215), (169, 1192775), (325, 620243), (845, 238555), (4225, 47711)]