28782045

素因数分解:

$3^2\times 5^1\times {\mathrm{639601}}^1$

素因数の和:639612

約数の個数: 12

約数和(自身を含む): 49888956

約数和(自身を除く): 21106911

約数列:

[1, 3, 5, 9, 15, 45, 639601, 1918803, 3198005, 5756409, 9594015, 28782045]

約数ペア:

[(1, 28782045), (3, 9594015), (5, 5756409), (9, 3198005), (15, 1918803), (45, 639601)]