875205

素因数分解:

$3^4\times 5^1\times {\mathrm{2161}}^1$

素因数の和:2178

約数の個数: 20

約数和(自身を含む): 1569612

約数和(自身を除く): 694407

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 2161, 6483, 10805, 19449, 32415, 58347, 97245, 175041, 291735, 875205]

約数ペア:

[(1, 875205), (3, 291735), (5, 175041), (9, 97245), (15, 58347), (27, 32415), (45, 19449), (81, 10805), (135, 6483), (405, 2161)]