18032725

素因数分解:

$5^2\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:309

約数の個数: 24

約数和(自身を含む): 23212800

約数和(自身を除く): 5180075

約数列:

[1, 5, 25, 47, 103, 149, 235, 515, 745, 1175, 2575, 3725, 4841, 7003, 15347, 24205, 35015, 76735, 121025, 175075, 383675, 721309, 3606545, 18032725]

約数ペア:

[(1, 18032725), (5, 3606545), (25, 721309), (47, 383675), (103, 175075), (149, 121025), (235, 76735), (515, 35015), (745, 24205), (1175, 15347), (2575, 7003), (3725, 4841)]