2121125

素因数分解:

$5^3\times {\mathrm{71}}^1\times {\mathrm{239}}^1$

素因数の和:325

約数の個数: 16

約数和(自身を含む): 2695680

約数和(自身を除く): 574555

約数列:

[1, 5, 25, 71, 125, 239, 355, 1195, 1775, 5975, 8875, 16969, 29875, 84845, 424225, 2121125]

約数ペア:

[(1, 2121125), (5, 424225), (25, 84845), (71, 29875), (125, 16969), (239, 8875), (355, 5975), (1195, 1775)]