18056020

素因数分解:

$2^2\times 5^1\times {\mathrm{911}}^1\times {\mathrm{991}}^1$

素因数の和:1911

約数の個数: 24

約数和(自身を含む): 37997568

約数和(自身を除く): 19941548

約数列:

[1, 2, 4, 5, 10, 20, 911, 991, 1822, 1982, 3644, 3964, 4555, 4955, 9110, 9910, 18220, 19820, 902801, 1805602, 3611204, 4514005, 9028010, 18056020]

約数ペア:

[(1, 18056020), (2, 9028010), (4, 4514005), (5, 3611204), (10, 1805602), (20, 902801), (911, 19820), (991, 18220), (1822, 9910), (1982, 9110), (3644, 4955), (3964, 4555)]