28718884

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{199}}^1\times {\mathrm{331}}^1$

素因数の和:643

約数の個数: 24

約数和(自身を含む): 51128000

約数和(自身を除く): 22409116

約数列:

[1, 2, 4, 109, 199, 218, 331, 398, 436, 662, 796, 1324, 21691, 36079, 43382, 65869, 72158, 86764, 131738, 144316, 263476, 7179721, 14359442, 28718884]

約数ペア:

[(1, 28718884), (2, 14359442), (4, 7179721), (109, 263476), (199, 144316), (218, 131738), (331, 86764), (398, 72158), (436, 65869), (662, 43382), (796, 36079), (1324, 21691)]