20145545

素因数分解:

$5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{3863}}^1$

素因数の和:4024

約数の個数: 16

約数和(自身を含む): 27820800

約数和(自身を除く): 7675255

約数列:

[1, 5, 7, 35, 149, 745, 1043, 3863, 5215, 19315, 27041, 135205, 575587, 2877935, 4029109, 20145545]

約数ペア:

[(1, 20145545), (5, 4029109), (7, 2877935), (35, 575587), (149, 135205), (745, 27041), (1043, 19315), (3863, 5215)]