287219408

素因数分解:

$2^4\times 7^1\times {\mathrm{2564459}}^1$

素因数の和:2564474

約数の個数: 20

約数和(自身を含む): 635986080

約数和(自身を除く): 348766672

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 2564459, 5128918, 10257836, 17951213, 20515672, 35902426, 41031344, 71804852, 143609704, 287219408]

約数ペア:

[(1, 287219408), (2, 143609704), (4, 71804852), (7, 41031344), (8, 35902426), (14, 20515672), (16, 17951213), (28, 10257836), (56, 5128918), (112, 2564459)]