2561396

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{311}}^1$

素因数の和:415

約数の個数: 24

約数和(自身を含む): 4717440

約数和(自身を除く): 2156044

約数列:

[1, 2, 4, 29, 58, 71, 116, 142, 284, 311, 622, 1244, 2059, 4118, 8236, 9019, 18038, 22081, 36076, 44162, 88324, 640349, 1280698, 2561396]

約数ペア:

[(1, 2561396), (2, 1280698), (4, 640349), (29, 88324), (58, 44162), (71, 36076), (116, 22081), (142, 18038), (284, 9019), (311, 8236), (622, 4118), (1244, 2059)]