399952

素因数分解:

$2^4\times 7^1\times {\mathrm{3571}}^1$

素因数の和:3586

約数の個数: 20

約数和(自身を含む): 885856

約数和(自身を除く): 485904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 3571, 7142, 14284, 24997, 28568, 49994, 57136, 99988, 199976, 399952]

約数ペア:

[(1, 399952), (2, 199976), (4, 99988), (7, 57136), (8, 49994), (14, 28568), (16, 24997), (28, 14284), (56, 7142), (112, 3571)]