18000940

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{11393}}^1$

素因数の和:11481

約数の個数: 24

約数和(自身を含む): 38283840

約数和(自身を除く): 20282900

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 11393, 22786, 45572, 56965, 113930, 227860, 900047, 1800094, 3600188, 4500235, 9000470, 18000940]

約数ペア:

[(1, 18000940), (2, 9000470), (4, 4500235), (5, 3600188), (10, 1800094), (20, 900047), (79, 227860), (158, 113930), (316, 56965), (395, 45572), (790, 22786), (1580, 11393)]