278327252

素因数分解:

$2^2\times 7^2\times {\mathrm{1420037}}^1$

素因数の和:1420055

約数の個数: 18

約数和(自身を含む): 566595162

約数和(自身を除く): 288267910

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 1420037, 2840074, 5680148, 9940259, 19880518, 39761036, 69581813, 139163626, 278327252]

約数ペア:

[(1, 278327252), (2, 139163626), (4, 69581813), (7, 39761036), (14, 19880518), (28, 9940259), (49, 5680148), (98, 2840074), (196, 1420037)]