20802664

素因数分解:

$2^3\times {\mathrm{73}}^1\times {\mathrm{179}}^1\times {\mathrm{199}}^1$

素因数の和:457

約数の個数: 32

約数和(自身を含む): 39960000

約数和(自身を除く): 19157336

約数列:

[1, 2, 4, 8, 73, 146, 179, 199, 292, 358, 398, 584, 716, 796, 1432, 1592, 13067, 14527, 26134, 29054, 35621, 52268, 58108, 71242, 104536, 116216, 142484, 284968, 2600333, 5200666, 10401332, 20802664]

約数ペア:

[(1, 20802664), (2, 10401332), (4, 5200666), (8, 2600333), (73, 284968), (146, 142484), (179, 116216), (199, 104536), (292, 71242), (358, 58108), (398, 52268), (584, 35621), (716, 29054), (796, 26134), (1432, 14527), (1592, 13067)]