28038105

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 50918400

約数和(自身を除く): 22880295

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 101, 155, 199, 279, 303, 465, 505, 597, 909, 995, 1395, 1515, 1791, 2985, 3131, 4545, 6169, 8955, 9393, 15655, 18507, 20099, 28179, 30845, 46965, 55521, 60297, 92535, 100495, 140895, 180891, 277605, 301485, 623069, 904455, 1869207, 3115345, 5607621, 9346035, 28038105]

約数ペア:

[(1, 28038105), (3, 9346035), (5, 5607621), (9, 3115345), (15, 1869207), (31, 904455), (45, 623069), (93, 301485), (101, 277605), (155, 180891), (199, 140895), (279, 100495), (303, 92535), (465, 60297), (505, 55521), (597, 46965), (909, 30845), (995, 28179), (1395, 20099), (1515, 18507), (1791, 15655), (2985, 9393), (3131, 8955), (4545, 6169)]