17987940

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{33311}}^1$

素因数の和:33329

約数の個数: 48

約数和(自身を含む): 55964160

約数和(自身を除く): 37976220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 33311, 66622, 99933, 133244, 166555, 199866, 299799, 333110, 399732, 499665, 599598, 666220, 899397, 999330, 1199196, 1498995, 1798794, 1998660, 2997990, 3597588, 4496985, 5995980, 8993970, 17987940]

約数ペア:

[(1, 17987940), (2, 8993970), (3, 5995980), (4, 4496985), (5, 3597588), (6, 2997990), (9, 1998660), (10, 1798794), (12, 1498995), (15, 1199196), (18, 999330), (20, 899397), (27, 666220), (30, 599598), (36, 499665), (45, 399732), (54, 333110), (60, 299799), (90, 199866), (108, 166555), (135, 133244), (180, 99933), (270, 66622), (540, 33311)]