18118840

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{2347}}^1$

素因数の和:2551

約数の個数: 32

約数和(自身を含む): 40996080

約数和(自身を除く): 22877240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 386, 772, 965, 1544, 1930, 2347, 3860, 4694, 7720, 9388, 11735, 18776, 23470, 46940, 93880, 452971, 905942, 1811884, 2264855, 3623768, 4529710, 9059420, 18118840]

約数ペア:

[(1, 18118840), (2, 9059420), (4, 4529710), (5, 3623768), (8, 2264855), (10, 1811884), (20, 905942), (40, 452971), (193, 93880), (386, 46940), (772, 23470), (965, 18776), (1544, 11735), (1930, 9388), (2347, 7720), (3860, 4694)]