28865565

素因数分解:

$3^4\times 5^1\times {\mathrm{263}}^1\times {\mathrm{271}}^1$

素因数の和:551

約数の個数: 40

約数和(自身を含む): 52132608

約数和(自身を除く): 23267043

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 263, 271, 405, 789, 813, 1315, 1355, 2367, 2439, 3945, 4065, 7101, 7317, 11835, 12195, 21303, 21951, 35505, 36585, 71273, 106515, 109755, 213819, 356365, 641457, 1069095, 1924371, 3207285, 5773113, 9621855, 28865565]

約数ペア:

[(1, 28865565), (3, 9621855), (5, 5773113), (9, 3207285), (15, 1924371), (27, 1069095), (45, 641457), (81, 356365), (135, 213819), (263, 109755), (271, 106515), (405, 71273), (789, 36585), (813, 35505), (1315, 21951), (1355, 21303), (2367, 12195), (2439, 11835), (3945, 7317), (4065, 7101)]