1815380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{12967}}^1$

素因数の和:12983

約数の個数: 24

約数和(自身を含む): 4357248

約数和(自身を除く): 2541868

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 12967, 25934, 51868, 64835, 90769, 129670, 181538, 259340, 363076, 453845, 907690, 1815380]

約数ペア:

[(1, 1815380), (2, 907690), (4, 453845), (5, 363076), (7, 259340), (10, 181538), (14, 129670), (20, 90769), (28, 64835), (35, 51868), (70, 25934), (140, 12967)]