257525008

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1238101}}^1$

素因数の和:1238122

約数の個数: 20

約数和(自身を含む): 537336268

約数和(自身を除く): 279811260

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1238101, 2476202, 4952404, 9904808, 16095313, 19809616, 32190626, 64381252, 128762504, 257525008]

約数ペア:

[(1, 257525008), (2, 128762504), (4, 64381252), (8, 32190626), (13, 19809616), (16, 16095313), (26, 9904808), (52, 4952404), (104, 2476202), (208, 1238101)]