640047444478

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{449}}^1\times {\mathrm{457}}^1\times {\mathrm{119971}}^1$

素因数の和:120892

約数の個数: 32

約数和(自身を含む): 1038501626400

約数和(自身を除く): 398454181922

約数列:

[1, 2, 13, 26, 449, 457, 898, 914, 5837, 5941, 11674, 11882, 119971, 205193, 239942, 410386, 1559623, 2667509, 3119246, 5335018, 53866979, 54826747, 107733958, 109653494, 700270727, 712747711, 1400541454, 1425495422, 24617209403, 49234418806, 320023722239, 640047444478]

約数ペア:

[(1, 640047444478), (2, 320023722239), (13, 49234418806), (26, 24617209403), (449, 1425495422), (457, 1400541454), (898, 712747711), (914, 700270727), (5837, 109653494), (5941, 107733958), (11674, 54826747), (11882, 53866979), (119971, 5335018), (205193, 3119246), (239942, 2667509), (410386, 1559623)]