20254884

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{827}}^1$

素因数の和:1004

約数の個数: 48

約数和(自身を含む): 51283008

約数和(自身を除く): 31028124

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 157, 314, 471, 628, 827, 942, 1654, 1884, 2041, 2481, 3308, 4082, 4962, 6123, 8164, 9924, 10751, 12246, 21502, 24492, 32253, 43004, 64506, 129012, 129839, 259678, 389517, 519356, 779034, 1558068, 1687907, 3375814, 5063721, 6751628, 10127442, 20254884]

約数ペア:

[(1, 20254884), (2, 10127442), (3, 6751628), (4, 5063721), (6, 3375814), (12, 1687907), (13, 1558068), (26, 779034), (39, 519356), (52, 389517), (78, 259678), (156, 129839), (157, 129012), (314, 64506), (471, 43004), (628, 32253), (827, 24492), (942, 21502), (1654, 12246), (1884, 10751), (2041, 9924), (2481, 8164), (3308, 6123), (4082, 4962)]