978305

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1$

素因数の和:256

約数の個数: 16

約数和(自身を含む): 1257984

約数和(自身を除く): 279679

約数列:

[1, 5, 23, 47, 115, 181, 235, 905, 1081, 4163, 5405, 8507, 20815, 42535, 195661, 978305]

約数ペア:

[(1, 978305), (5, 195661), (23, 42535), (47, 20815), (115, 8507), (181, 5405), (235, 4163), (905, 1081)]