19530195

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1$

素因数の和:212

約数の個数: 64

約数和(自身を含む): 36288000

約数和(自身を除く): 16757805

約数列:

[1, 3, 5, 15, 17, 19, 29, 51, 57, 85, 87, 95, 139, 145, 255, 285, 323, 417, 435, 493, 551, 695, 969, 1479, 1615, 1653, 2085, 2363, 2465, 2641, 2755, 4031, 4845, 7089, 7395, 7923, 8265, 9367, 11815, 12093, 13205, 20155, 28101, 35445, 39615, 44897, 46835, 60465, 68527, 76589, 134691, 140505, 205581, 224485, 229767, 342635, 382945, 673455, 1027905, 1148835, 1302013, 3906039, 6510065, 19530195]

約数ペア:

[(1, 19530195), (3, 6510065), (5, 3906039), (15, 1302013), (17, 1148835), (19, 1027905), (29, 673455), (51, 382945), (57, 342635), (85, 229767), (87, 224485), (95, 205581), (139, 140505), (145, 134691), (255, 76589), (285, 68527), (323, 60465), (417, 46835), (435, 44897), (493, 39615), (551, 35445), (695, 28101), (969, 20155), (1479, 13205), (1615, 12093), (1653, 11815), (2085, 9367), (2363, 8265), (2465, 7923), (2641, 7395), (2755, 7089), (4031, 4845)]