640814252

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{724903}}^1$

素因数の和:724937

約数の個数: 24

約数和(自身を含む): 1278730656

約数和(自身を除く): 637916404

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 221, 442, 884, 724903, 1449806, 2899612, 9423739, 12323351, 18847478, 24646702, 37694956, 49293404, 160203563, 320407126, 640814252]

約数ペア:

[(1, 640814252), (2, 320407126), (4, 160203563), (13, 49293404), (17, 37694956), (26, 24646702), (34, 18847478), (52, 12323351), (68, 9423739), (221, 2899612), (442, 1449806), (884, 724903)]