171872020

素因数分解:

$2^2\times 5^1\times {\mathrm{1279}}^1\times {\mathrm{6719}}^1$

素因数の和:8007

約数の個数: 24

約数和(自身を含む): 361267200

約数和(自身を除く): 189395180

約数列:

[1, 2, 4, 5, 10, 20, 1279, 2558, 5116, 6395, 6719, 12790, 13438, 25580, 26876, 33595, 67190, 134380, 8593601, 17187202, 34374404, 42968005, 85936010, 171872020]

約数ペア:

[(1, 171872020), (2, 85936010), (4, 42968005), (5, 34374404), (10, 17187202), (20, 8593601), (1279, 134380), (2558, 67190), (5116, 33595), (6395, 26876), (6719, 25580), (12790, 13438)]