128840005

素因数分解:

$5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{19273}}^1$

素因数の和:19476

約数の個数: 16

約数和(自身を含む): 177629184

約数和(自身を除く): 48789179

約数列:

[1, 5, 7, 35, 191, 955, 1337, 6685, 19273, 96365, 134911, 674555, 3681143, 18405715, 25768001, 128840005]

約数ペア:

[(1, 128840005), (5, 25768001), (7, 18405715), (35, 3681143), (191, 674555), (955, 134911), (1337, 96365), (6685, 19273)]