216922225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{811}}^1\times {\mathrm{823}}^1$

素因数の和:1657

約数の個数: 24

約数和(自身を含む): 290384192

約数和(自身を除く): 73461967

約数列:

[1, 5, 13, 25, 65, 325, 811, 823, 4055, 4115, 10543, 10699, 20275, 20575, 52715, 53495, 263575, 267475, 667453, 3337265, 8676889, 16686325, 43384445, 216922225]

約数ペア:

[(1, 216922225), (5, 43384445), (13, 16686325), (25, 8676889), (65, 3337265), (325, 667453), (811, 267475), (823, 263575), (4055, 53495), (4115, 52715), (10543, 20575), (10699, 20275)]