28400805

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20359}}^1$

素因数の和:20401

約数の個数: 24

約数和(自身を含む): 50818560

約数和(自身を除く): 22417755

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 20359, 61077, 101795, 183231, 305385, 631129, 916155, 1893387, 3155645, 5680161, 9466935, 28400805]

約数ペア:

[(1, 28400805), (3, 9466935), (5, 5680161), (9, 3155645), (15, 1893387), (31, 916155), (45, 631129), (93, 305385), (155, 183231), (279, 101795), (465, 61077), (1395, 20359)]