20426576

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1181}}^1$

素因数の和:1259

約数の個数: 40

約数和(自身を含む): 42211584

約数和(自身を除く): 21785008

約数列:

[1, 2, 4, 8, 16, 23, 46, 47, 92, 94, 184, 188, 368, 376, 752, 1081, 1181, 2162, 2362, 4324, 4724, 8648, 9448, 17296, 18896, 27163, 54326, 55507, 108652, 111014, 217304, 222028, 434608, 444056, 888112, 1276661, 2553322, 5106644, 10213288, 20426576]

約数ペア:

[(1, 20426576), (2, 10213288), (4, 5106644), (8, 2553322), (16, 1276661), (23, 888112), (46, 444056), (47, 434608), (92, 222028), (94, 217304), (184, 111014), (188, 108652), (368, 55507), (376, 54326), (752, 27163), (1081, 18896), (1181, 17296), (2162, 9448), (2362, 8648), (4324, 4724)]