28125040

素因数分解:

$2^4\times 5^1\times {\mathrm{351563}}^1$

素因数の和:351576

約数の個数: 20

約数和(自身を含む): 65390904

約数和(自身を除く): 37265864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 351563, 703126, 1406252, 1757815, 2812504, 3515630, 5625008, 7031260, 14062520, 28125040]

約数ペア:

[(1, 28125040), (2, 14062520), (4, 7031260), (5, 5625008), (8, 3515630), (10, 2812504), (16, 1757815), (20, 1406252), (40, 703126), (80, 351563)]