20455184

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{83}}^1\times {\mathrm{211}}^1$

素因数の和:375

約数の個数: 40

約数和(自身を含む): 40851552

約数和(自身を除く): 20396368

約数列:

[1, 2, 4, 8, 16, 73, 83, 146, 166, 211, 292, 332, 422, 584, 664, 844, 1168, 1328, 1688, 3376, 6059, 12118, 15403, 17513, 24236, 30806, 35026, 48472, 61612, 70052, 96944, 123224, 140104, 246448, 280208, 1278449, 2556898, 5113796, 10227592, 20455184]

約数ペア:

[(1, 20455184), (2, 10227592), (4, 5113796), (8, 2556898), (16, 1278449), (73, 280208), (83, 246448), (146, 140104), (166, 123224), (211, 96944), (292, 70052), (332, 61612), (422, 48472), (584, 35026), (664, 30806), (844, 24236), (1168, 17513), (1328, 15403), (1688, 12118), (3376, 6059)]