978128

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{541}}^1$

素因数の和:662

約数の個数: 20

約数和(自身を含む): 1915428

約数和(自身を除く): 937300

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 541, 904, 1082, 1808, 2164, 4328, 8656, 61133, 122266, 244532, 489064, 978128]

約数ペア:

[(1, 978128), (2, 489064), (4, 244532), (8, 122266), (16, 61133), (113, 8656), (226, 4328), (452, 2164), (541, 1808), (904, 1082)]