18816880

素因数分解:

$2^4\times 5^1\times {\mathrm{235211}}^1$

素因数の和:235224

約数の個数: 20

約数和(自身を含む): 43749432

約数和(自身を除く): 24932552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 235211, 470422, 940844, 1176055, 1881688, 2352110, 3763376, 4704220, 9408440, 18816880]

約数ペア:

[(1, 18816880), (2, 9408440), (4, 4704220), (5, 3763376), (8, 2352110), (10, 1881688), (16, 1176055), (20, 940844), (40, 470422), (80, 235211)]