513968

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{353}}^1$

素因数の和:381

約数の個数: 40

約数和(自身を含む): 1229088

約数和(自身を除く): 715120

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 353, 364, 706, 728, 1412, 1456, 2471, 2824, 4589, 4942, 5648, 9178, 9884, 18356, 19768, 32123, 36712, 39536, 64246, 73424, 128492, 256984, 513968]

約数ペア:

[(1, 513968), (2, 256984), (4, 128492), (7, 73424), (8, 64246), (13, 39536), (14, 36712), (16, 32123), (26, 19768), (28, 18356), (52, 9884), (56, 9178), (91, 5648), (104, 4942), (112, 4589), (182, 2824), (208, 2471), (353, 1456), (364, 1412), (706, 728)]