16817720

素因数分解:

$2^3\times 5^1\times {\mathrm{433}}^1\times {\mathrm{971}}^1$

素因数の和:1415

約数の個数: 32

約数和(自身を含む): 37966320

約数和(自身を除く): 21148600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 433, 866, 971, 1732, 1942, 2165, 3464, 3884, 4330, 4855, 7768, 8660, 9710, 17320, 19420, 38840, 420443, 840886, 1681772, 2102215, 3363544, 4204430, 8408860, 16817720]

約数ペア:

[(1, 16817720), (2, 8408860), (4, 4204430), (5, 3363544), (8, 2102215), (10, 1681772), (20, 840886), (40, 420443), (433, 38840), (866, 19420), (971, 17320), (1732, 9710), (1942, 8660), (2165, 7768), (3464, 4855), (3884, 4330)]