399056

素因数分解:

$2^4\times 7^2\times {\mathrm{509}}^1$

素因数の和:531

約数の個数: 30

約数和(自身を含む): 901170

約数和(自身を除く): 502114

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 509, 784, 1018, 2036, 3563, 4072, 7126, 8144, 14252, 24941, 28504, 49882, 57008, 99764, 199528, 399056]

約数ペア:

[(1, 399056), (2, 199528), (4, 99764), (7, 57008), (8, 49882), (14, 28504), (16, 24941), (28, 14252), (49, 8144), (56, 7126), (98, 4072), (112, 3563), (196, 2036), (392, 1018), (509, 784)]