13242940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{28789}}^1$

素因数の和:28821

約数の個数: 24

約数和(自身を含む): 29020320

約数和(自身を除く): 15777380

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 28789, 57578, 115156, 143945, 287890, 575780, 662147, 1324294, 2648588, 3310735, 6621470, 13242940]

約数ペア:

[(1, 13242940), (2, 6621470), (4, 3310735), (5, 2648588), (10, 1324294), (20, 662147), (23, 575780), (46, 287890), (92, 143945), (115, 115156), (230, 57578), (460, 28789)]