18637040

素因数分解:

$2^4\times 5^1\times {\mathrm{232963}}^1$

素因数の和:232976

約数の個数: 20

約数和(自身を含む): 43331304

約数和(自身を除く): 24694264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 232963, 465926, 931852, 1164815, 1863704, 2329630, 3727408, 4659260, 9318520, 18637040]

約数ペア:

[(1, 18637040), (2, 9318520), (4, 4659260), (5, 3727408), (8, 2329630), (10, 1863704), (16, 1164815), (20, 931852), (40, 465926), (80, 232963)]