420078764

素因数分解:

$2^2\times 7^2\times {\mathrm{2143259}}^1$

素因数の和:2143277

約数の個数: 18

約数和(自身を含む): 855160740

約数和(自身を除く): 435081976

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 2143259, 4286518, 8573036, 15002813, 30005626, 60011252, 105019691, 210039382, 420078764]

約数ペア:

[(1, 420078764), (2, 210039382), (4, 105019691), (7, 60011252), (14, 30005626), (28, 15002813), (49, 8573036), (98, 4286518), (196, 2143259)]