640012702

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2689129}}^1$

素因数の和:2689155

約数の個数: 16

約数和(自身を含む): 1161704160

約数和(自身を除く): 521691458

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 2689129, 5378258, 18823903, 37647806, 45715193, 91430386, 320006351, 640012702]

約数ペア:

[(1, 640012702), (2, 320006351), (7, 91430386), (14, 45715193), (17, 37647806), (34, 18823903), (119, 5378258), (238, 2689129)]