259089584

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1245623}}^1$

素因数の和:1245644

約数の個数: 20

約数和(自身を含む): 540600816

約数和(自身を除く): 281511232

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1245623, 2491246, 4982492, 9964984, 16193099, 19929968, 32386198, 64772396, 129544792, 259089584]

約数ペア:

[(1, 259089584), (2, 129544792), (4, 64772396), (8, 32386198), (13, 19929968), (16, 16193099), (26, 9964984), (52, 4982492), (104, 2491246), (208, 1245623)]