821025

素因数分解:

$3^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:146

約数の個数: 36

約数和(自身を含む): 1523340

約数和(自身を除く): 702315

約数列:

[1, 3, 5, 9, 15, 25, 41, 45, 75, 89, 123, 205, 225, 267, 369, 445, 615, 801, 1025, 1335, 1845, 2225, 3075, 3649, 4005, 6675, 9225, 10947, 18245, 20025, 32841, 54735, 91225, 164205, 273675, 821025]

約数ペア:

[(1, 821025), (3, 273675), (5, 164205), (9, 91225), (15, 54735), (25, 32841), (41, 20025), (45, 18245), (75, 10947), (89, 9225), (123, 6675), (205, 4005), (225, 3649), (267, 3075), (369, 2225), (445, 1845), (615, 1335), (801, 1025)]