18270940

素因数分解:

$2^2\times 5^1\times {\mathrm{653}}^1\times {\mathrm{1399}}^1$

素因数の和:2061

約数の個数: 24

約数和(自身を含む): 38455200

約数和(自身を除く): 20184260

約数列:

[1, 2, 4, 5, 10, 20, 653, 1306, 1399, 2612, 2798, 3265, 5596, 6530, 6995, 13060, 13990, 27980, 913547, 1827094, 3654188, 4567735, 9135470, 18270940]

約数ペア:

[(1, 18270940), (2, 9135470), (4, 4567735), (5, 3654188), (10, 1827094), (20, 913547), (653, 27980), (1306, 13990), (1399, 13060), (2612, 6995), (2798, 6530), (3265, 5596)]