205465905

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{5113}}^1$

素因数の和:5190

約数の個数: 48

約数和(自身を含む): 382936320

約数和(自身を除く): 177470415

約数列:

[1, 3, 5, 9, 15, 19, 45, 47, 57, 95, 141, 171, 235, 285, 423, 705, 855, 893, 2115, 2679, 4465, 5113, 8037, 13395, 15339, 25565, 40185, 46017, 76695, 97147, 230085, 240311, 291441, 485735, 720933, 874323, 1201555, 1457205, 2162799, 3604665, 4371615, 4565909, 10813995, 13697727, 22829545, 41093181, 68488635, 205465905]

約数ペア:

[(1, 205465905), (3, 68488635), (5, 41093181), (9, 22829545), (15, 13697727), (19, 10813995), (45, 4565909), (47, 4371615), (57, 3604665), (95, 2162799), (141, 1457205), (171, 1201555), (235, 874323), (285, 720933), (423, 485735), (705, 291441), (855, 240311), (893, 230085), (2115, 97147), (2679, 76695), (4465, 46017), (5113, 40185), (8037, 25565), (13395, 15339)]