18032020

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{19183}}^1$

素因数の和:19239

約数の個数: 24

約数和(自身を含む): 38674944

約数和(自身を除く): 20642924

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 19183, 38366, 76732, 95915, 191830, 383660, 901601, 1803202, 3606404, 4508005, 9016010, 18032020]

約数ペア:

[(1, 18032020), (2, 9016010), (4, 4508005), (5, 3606404), (10, 1803202), (20, 901601), (47, 383660), (94, 191830), (188, 95915), (235, 76732), (470, 38366), (940, 19183)]