513188

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:227

約数の個数: 24

約数和(自身を含む): 987840

約数和(自身を除く): 474652

約数列:

[1, 2, 4, 13, 26, 52, 71, 139, 142, 278, 284, 556, 923, 1807, 1846, 3614, 3692, 7228, 9869, 19738, 39476, 128297, 256594, 513188]

約数ペア:

[(1, 513188), (2, 256594), (4, 128297), (13, 39476), (26, 19738), (52, 9869), (71, 7228), (139, 3692), (142, 3614), (278, 1846), (284, 1807), (556, 923)]