20279555

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{433}}^1$

素因数の和:503

約数の個数: 32

約数和(自身を含む): 28123200

約数和(自身を除く): 7843645

約数列:

[1, 5, 17, 19, 29, 85, 95, 145, 323, 433, 493, 551, 1615, 2165, 2465, 2755, 7361, 8227, 9367, 12557, 36805, 41135, 46835, 62785, 139859, 213469, 238583, 699295, 1067345, 1192915, 4055911, 20279555]

約数ペア:

[(1, 20279555), (5, 4055911), (17, 1192915), (19, 1067345), (29, 699295), (85, 238583), (95, 213469), (145, 139859), (323, 62785), (433, 46835), (493, 41135), (551, 36805), (1615, 12557), (2165, 9367), (2465, 8227), (2755, 7361)]