18065540

素因数分解:

$2^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{2039}}^1$

素因数の和:2491

約数の個数: 24

約数和(自身を含む): 38041920

約数和(自身を除く): 19976380

約数列:

[1, 2, 4, 5, 10, 20, 443, 886, 1772, 2039, 2215, 4078, 4430, 8156, 8860, 10195, 20390, 40780, 903277, 1806554, 3613108, 4516385, 9032770, 18065540]

約数ペア:

[(1, 18065540), (2, 9032770), (4, 4516385), (5, 3613108), (10, 1806554), (20, 903277), (443, 40780), (886, 20390), (1772, 10195), (2039, 8860), (2215, 8156), (4078, 4430)]