30874840

素因数分解:

$2^3\times 5^1\times {\mathrm{647}}^1\times {\mathrm{1193}}^1$

素因数の和:1851

約数の個数: 32

約数和(自身を含む): 69634080

約数和(自身を除く): 38759240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 647, 1193, 1294, 2386, 2588, 3235, 4772, 5176, 5965, 6470, 9544, 11930, 12940, 23860, 25880, 47720, 771871, 1543742, 3087484, 3859355, 6174968, 7718710, 15437420, 30874840]

約数ペア:

[(1, 30874840), (2, 15437420), (4, 7718710), (5, 6174968), (8, 3859355), (10, 3087484), (20, 1543742), (40, 771871), (647, 47720), (1193, 25880), (1294, 23860), (2386, 12940), (2588, 11930), (3235, 9544), (4772, 6470), (5176, 5965)]