20118376

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{2063}}^1$

素因数の和:2145

約数の個数: 32

約数和(自身を含む): 40124160

約数和(自身を除く): 20005784

約数列:

[1, 2, 4, 8, 23, 46, 53, 92, 106, 184, 212, 424, 1219, 2063, 2438, 4126, 4876, 8252, 9752, 16504, 47449, 94898, 109339, 189796, 218678, 379592, 437356, 874712, 2514797, 5029594, 10059188, 20118376]

約数ペア:

[(1, 20118376), (2, 10059188), (4, 5029594), (8, 2514797), (23, 874712), (46, 437356), (53, 379592), (92, 218678), (106, 189796), (184, 109339), (212, 94898), (424, 47449), (1219, 16504), (2063, 9752), (2438, 8252), (4126, 4876)]