2780235

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1993}}^1$

素因数の和:2035

約数の個数: 24

約数和(自身を含む): 4977024

約数和(自身を除く): 2196789

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 1993, 5979, 9965, 17937, 29895, 61783, 89685, 185349, 308915, 556047, 926745, 2780235]

約数ペア:

[(1, 2780235), (3, 926745), (5, 556047), (9, 308915), (15, 185349), (31, 89685), (45, 61783), (93, 29895), (155, 17937), (279, 9965), (465, 5979), (1395, 1993)]