256769968

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{176353}}^1$

素因数の和:176381

約数の個数: 40

約数和(自身を含む): 612301088

約数和(自身を除く): 355531120

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 176353, 352706, 705412, 1234471, 1410824, 2292589, 2468942, 2821648, 4585178, 4937884, 9170356, 9875768, 16048123, 18340712, 19751536, 32096246, 36681424, 64192492, 128384984, 256769968]

約数ペア:

[(1, 256769968), (2, 128384984), (4, 64192492), (7, 36681424), (8, 32096246), (13, 19751536), (14, 18340712), (16, 16048123), (26, 9875768), (28, 9170356), (52, 4937884), (56, 4585178), (91, 2821648), (104, 2468942), (112, 2292589), (182, 1410824), (208, 1234471), (364, 705412), (728, 352706), (1456, 176353)]