399804928

素因数分解:

$2^9\times {\mathrm{780869}}^1$

素因数の和:780887

約数の個数: 20

約数和(自身を含む): 798830010

約数和(自身を除く): 399025082

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 780869, 1561738, 3123476, 6246952, 12493904, 24987808, 49975616, 99951232, 199902464, 399804928]

約数ペア:

[(1, 399804928), (2, 199902464), (4, 99951232), (8, 49975616), (16, 24987808), (32, 12493904), (64, 6246952), (128, 3123476), (256, 1561738), (512, 780869)]