26668720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25643}}^1$

素因数の和:25669

約数の個数: 40

約数和(自身を含む): 66776976

約数和(自身を除く): 40108256

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 25643, 51286, 102572, 128215, 205144, 256430, 333359, 410288, 512860, 666718, 1025720, 1333436, 1666795, 2051440, 2666872, 3333590, 5333744, 6667180, 13334360, 26668720]

約数ペア:

[(1, 26668720), (2, 13334360), (4, 6667180), (5, 5333744), (8, 3333590), (10, 2666872), (13, 2051440), (16, 1666795), (20, 1333436), (26, 1025720), (40, 666718), (52, 512860), (65, 410288), (80, 333359), (104, 256430), (130, 205144), (208, 128215), (260, 102572), (520, 51286), (1040, 25643)]