16402040

素因数分解:

$2^3\times 5^1\times {\mathrm{433}}^1\times {\mathrm{947}}^1$

素因数の和:1391

約数の個数: 32

約数和(自身を含む): 37028880

約数和(自身を除く): 20626840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 433, 866, 947, 1732, 1894, 2165, 3464, 3788, 4330, 4735, 7576, 8660, 9470, 17320, 18940, 37880, 410051, 820102, 1640204, 2050255, 3280408, 4100510, 8201020, 16402040]

約数ペア:

[(1, 16402040), (2, 8201020), (4, 4100510), (5, 3280408), (8, 2050255), (10, 1640204), (20, 820102), (40, 410051), (433, 37880), (866, 18940), (947, 17320), (1732, 9470), (1894, 8660), (2165, 7576), (3464, 4735), (3788, 4330)]