2561008

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{2389}}^1$

素因数の和:2464

約数の個数: 20

約数和(自身を含む): 5038120

約数和(自身を除く): 2477112

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 2389, 4778, 9556, 19112, 38224, 160063, 320126, 640252, 1280504, 2561008]

約数ペア:

[(1, 2561008), (2, 1280504), (4, 640252), (8, 320126), (16, 160063), (67, 38224), (134, 19112), (268, 9556), (536, 4778), (1072, 2389)]