208138005

素因数分解:

$3^5\times 5^1\times {\mathrm{107}}^1\times {\mathrm{1601}}^1$

素因数の和:1728

約数の個数: 48

約数和(自身を含む): 377866944

約数和(自身を除く): 169728939

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 107, 135, 243, 321, 405, 535, 963, 1215, 1601, 1605, 2889, 4803, 4815, 8005, 8667, 14409, 14445, 24015, 26001, 43227, 43335, 72045, 129681, 130005, 171307, 216135, 389043, 513921, 648405, 856535, 1541763, 1945215, 2569605, 4625289, 7708815, 13875867, 23126445, 41627601, 69379335, 208138005]

約数ペア:

[(1, 208138005), (3, 69379335), (5, 41627601), (9, 23126445), (15, 13875867), (27, 7708815), (45, 4625289), (81, 2569605), (107, 1945215), (135, 1541763), (243, 856535), (321, 648405), (405, 513921), (535, 389043), (963, 216135), (1215, 171307), (1601, 130005), (1605, 129681), (2889, 72045), (4803, 43335), (4815, 43227), (8005, 26001), (8667, 24015), (14409, 14445)]