9720855

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 18162144

約数和(自身を除く): 8441289

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 97, 131, 153, 255, 291, 393, 485, 655, 765, 873, 1179, 1455, 1649, 1965, 2227, 4365, 4947, 5895, 6681, 8245, 11135, 12707, 14841, 20043, 24735, 33405, 38121, 63535, 74205, 100215, 114363, 190605, 216019, 571815, 648057, 1080095, 1944171, 3240285, 9720855]

約数ペア:

[(1, 9720855), (3, 3240285), (5, 1944171), (9, 1080095), (15, 648057), (17, 571815), (45, 216019), (51, 190605), (85, 114363), (97, 100215), (131, 74205), (153, 63535), (255, 38121), (291, 33405), (393, 24735), (485, 20043), (655, 14841), (765, 12707), (873, 11135), (1179, 8245), (1455, 6681), (1649, 5895), (1965, 4947), (2227, 4365)]