216842975

素因数分解:

$5^2\times {\mathrm{127}}^1\times {\mathrm{163}}^1\times {\mathrm{419}}^1$

素因数の和:719

約数の個数: 24

約数和(自身を含む): 273315840

約数和(自身を除く): 56472865

約数列:

[1, 5, 25, 127, 163, 419, 635, 815, 2095, 3175, 4075, 10475, 20701, 53213, 68297, 103505, 266065, 341485, 517525, 1330325, 1707425, 8673719, 43368595, 216842975]

約数ペア:

[(1, 216842975), (5, 43368595), (25, 8673719), (127, 1707425), (163, 1330325), (419, 517525), (635, 341485), (815, 266065), (2095, 103505), (3175, 68297), (4075, 53213), (10475, 20701)]