20676095840

素因数分解:

$2^5\times 5^1\times {\mathrm{293}}^1\times {\mathrm{441043}}^1$

素因数の和:441351

約数の個数: 48

約数和(自身を含む): 49014101808

約数和(自身を除く): 28338005968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 293, 586, 1172, 1465, 2344, 2930, 4688, 5860, 9376, 11720, 23440, 46880, 441043, 882086, 1764172, 2205215, 3528344, 4410430, 7056688, 8820860, 14113376, 17641720, 35283440, 70566880, 129225599, 258451198, 516902396, 646127995, 1033804792, 1292255990, 2067609584, 2584511980, 4135219168, 5169023960, 10338047920, 20676095840]

約数ペア:

[(1, 20676095840), (2, 10338047920), (4, 5169023960), (5, 4135219168), (8, 2584511980), (10, 2067609584), (16, 1292255990), (20, 1033804792), (32, 646127995), (40, 516902396), (80, 258451198), (160, 129225599), (293, 70566880), (586, 35283440), (1172, 17641720), (1465, 14113376), (2344, 8820860), (2930, 7056688), (4688, 4410430), (5860, 3528344), (9376, 2205215), (11720, 1764172), (23440, 882086), (46880, 441043)]