2587815

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{661}}^1$

素因数の和:704

約数の個数: 32

約数和(自身を含む): 4766400

約数和(自身を除く): 2178585

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 87, 135, 145, 261, 435, 661, 783, 1305, 1983, 3305, 3915, 5949, 9915, 17847, 19169, 29745, 57507, 89235, 95845, 172521, 287535, 517563, 862605, 2587815]

約数ペア:

[(1, 2587815), (3, 862605), (5, 517563), (9, 287535), (15, 172521), (27, 95845), (29, 89235), (45, 57507), (87, 29745), (135, 19169), (145, 17847), (261, 9915), (435, 5949), (661, 3915), (783, 3305), (1305, 1983)]