639778895

素因数分解:

$5^1\times 7^1\times {\mathrm{641}}^1\times {\mathrm{28517}}^1$

素因数の和:29170

約数の個数: 16

約数和(自身を含む): 878810688

約数和(自身を除く): 239031793

約数列:

[1, 5, 7, 35, 641, 3205, 4487, 22435, 28517, 142585, 199619, 998095, 18279397, 91396985, 127955779, 639778895]

約数ペア:

[(1, 639778895), (5, 127955779), (7, 91396985), (35, 18279397), (641, 998095), (3205, 199619), (4487, 142585), (22435, 28517)]