2581904

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{12413}}^1$

素因数の和:12434

約数の個数: 20

約数和(自身を含む): 5387676

約数和(自身を除く): 2805772

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 12413, 24826, 49652, 99304, 161369, 198608, 322738, 645476, 1290952, 2581904]

約数ペア:

[(1, 2581904), (2, 1290952), (4, 645476), (8, 322738), (13, 198608), (16, 161369), (26, 99304), (52, 49652), (104, 24826), (208, 12413)]