18780045

素因数分解:

$3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{7681}}^1$

素因数の和:7852

約数の個数: 16

約数和(自身を含む): 30236352

約数和(自身を除く): 11456307

約数列:

[1, 3, 5, 15, 163, 489, 815, 2445, 7681, 23043, 38405, 115215, 1252003, 3756009, 6260015, 18780045]

約数ペア:

[(1, 18780045), (3, 6260015), (5, 3756009), (15, 1252003), (163, 115215), (489, 38405), (815, 23043), (2445, 7681)]