206812815

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1609}}^1$

素因数の和:1688

約数の個数: 64

約数和(自身を含む): 389491200

約数和(自身を除く): 182678385

約数列:

[1, 3, 5, 11, 15, 19, 33, 41, 55, 57, 95, 123, 165, 205, 209, 285, 451, 615, 627, 779, 1045, 1353, 1609, 2255, 2337, 3135, 3895, 4827, 6765, 8045, 8569, 11685, 17699, 24135, 25707, 30571, 42845, 53097, 65969, 88495, 91713, 128535, 152855, 197907, 265485, 329845, 336281, 458565, 725659, 989535, 1008843, 1253411, 1681405, 2176977, 3628295, 3760233, 5044215, 6267055, 10884885, 13787521, 18801165, 41362563, 68937605, 206812815]

約数ペア:

[(1, 206812815), (3, 68937605), (5, 41362563), (11, 18801165), (15, 13787521), (19, 10884885), (33, 6267055), (41, 5044215), (55, 3760233), (57, 3628295), (95, 2176977), (123, 1681405), (165, 1253411), (205, 1008843), (209, 989535), (285, 725659), (451, 458565), (615, 336281), (627, 329845), (779, 265485), (1045, 197907), (1353, 152855), (1609, 128535), (2255, 91713), (2337, 88495), (3135, 65969), (3895, 53097), (4827, 42845), (6765, 30571), (8045, 25707), (8569, 24135), (11685, 17699)]